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missing sound · marks your accent strongly

/ð/as in this

With no equivalent independent sound in Spanish, you probably substitute your regular 'd' sound for English ð in every position, including extremely common words like 'the', 'this', and 'that', pressing your tongue tip…

consensus 6exercises
Tongue tip presses firmly against the back of the upper teeth or the ridge for a full stop, as used for Spanish 'd' in every context.
Spanish habitTongue tip presses firmly against the back of the upper teeth or the ridge for a full stop, as used for Spanish 'd' in every context.
Tongue tip rests lightly between the upper and lower front teeth, letting air continue to flow with the voice turned on, rather than stopping it.
English targetTongue tip rests lightly between the upper and lower front teeth, letting air continue to flow with the voice turned on, rather than stopping it.
Spanish has no separate sound here and reaches for a firm 'd' stop; English 'th' lets air buzz continuously past a lightly placed tongue tip.

What you probably do

With no equivalent independent sound in Spanish, you probably substitute your regular 'd' sound for English ð in every position, including extremely common words like 'the', 'this', and 'that', pressing your tongue tip firmly against your teeth or gum ridge for a complete stop rather than letting air continue to flow.

How natives do it

Americans rest the tongue tip lightly between the upper and lower front teeth and keep the voice on continuously, letting air buzz steadily past the tongue rather than stopping it completely — there is no full closure at any point in this sound.

Why it matters

Because ð appears in some of the most frequent words in English, this single substitution habit shows up constantly in your speech and can genuinely confuse listeners in pairs like 'they/day' or 'there/dare', making it one of the highest-priority sounds to correct despite feeling minor.

Hear the difference

they /ˈðeɪ/
versus
day /ˈdeɪ/
there /ˈðɛɹ/
versus
dare /ˈdɛɹ/
though /ˈðo/
versus
dough /ˈdo/

Words this touches

thisthatmotherthethoughbreathe

Spanish speakers often substitute /d, d̪/.

How the mouth differs

Neither Latin American nor Castilian Spanish has a distinct voiced interdental fricative phoneme; the closest Spanish sound, the intervocalic allophone of d, is articulated with the tongue tip against or near the back of the upper teeth and is not a fully independent phoneme. Learners typically substitute their full dental/alveolar stop d for English ð in every position, including the very frequent function words 'the', 'this', and 'that'.

Listen for the pattern

Substituting d for ð directly collapses common word pairs such as 'they/day' or 'there/dare' for American listeners, and because ð appears constantly in high-frequency function words, this substitution is heard in nearly every sentence, making it one of the most persistent accent markers for Spanish speakers.

Practise it

Tell Then from Den

sourced
minimal pair listen 5 min ★☆☆
  1. Listen to pairs of words: then/den, though/dough, breathe/breed.
  2. For each pair, decide whether the key sound is a soft buzzing hiss (ð) or a harder stop/sibilant (d, z).
  3. Say 'A' or 'B' out loud, or write it down, for each pair you hear.
  4. Check your answers against the answer key.
  5. Replay any pair you missed three times, listening only to that one consonant.
  6. Redo the whole set until you score at least 9 out of 10.

Success check: You can reliably distinguish ð from d/z even in random order, without needing to see the spelling.

Tongue tip visible between the teeth, continuous voiced buzz.
ð targetTongue tip visible between the teeth, continuous voiced buzz.
Tongue tip retracted behind the teeth, a full stop or a sharper sibilant buzz.
d/z substituteTongue tip retracted behind the teeth, a full stop or a sharper sibilant buzz.
Listen for the softer, continuous buzz of ð versus the harder 'd' stop or 'z' hiss.

Why this works. Presenting minimal pairs like then/den and though/dough in randomized order trains the learner's phonemic decision boundary between the voiced dental fricative ð and the d/z/v sounds Hungarian substitutes for it; sharpening perceptual discrimination first improves self-monitoring accuracy during later production practice.

Sources (1)

Build ð One Step at a Time

consensus
slow motion steps 5 min ★☆☆ mirror
  1. Relax your jaw and let your mouth open slightly.
  2. Slowly stick your tongue tip out between your teeth, same as for θ, and pause.
  3. Turn on your voice — hum gently — while keeping the tongue tip in that same spot.
  4. Let a light, steady buzz flow over your tongue tip along with a small stream of air.
  5. Hold that voiced buzz for two full seconds.
  6. Slowly pull your tongue back behind your teeth while the buzz fades.
  7. Repeat all the steps slightly faster until it feels like one smooth motion.
  8. Attach it to the start of 'this': hold the ð briefly, then finish the word.

Success check: You should feel your throat vibrating while your tongue tip is between your teeth, producing a soft buzz rather than a silent hiss or a stop.

Tongue tip protrudes between the teeth, no voicing yet.
Step 1Tongue tip protrudes between the teeth, no voicing yet.
Voice turns on, a steady buzz flows over the tongue tip.
Step 2Voice turns on, a steady buzz flows over the tongue tip.
Tongue retracts as the buzz fades out.
Step 3Tongue retracts as the buzz fades out.
Build ð step by step: protrude, turn on the buzz, hold, retract.

Why this works. Building the gesture step by step — protrusion, then adding continuous voicing, then retraction — lets the learner isolate the one component (vocal fold vibration) that turns the already-practiced θ gesture into ð, before reassembling the whole motion at normal speed.

Sources (1)
  • Ladefoged, P. & Johnson, K. (2015). A Course in Phonetics.

Practice ð in a Full Sentence

sourced
drill sentence 6 min ★★☆ mirror recorder
  1. Read this sentence slowly: 'This is the mother of that other brother, though he's leaving.'
  2. Exaggerate the tongue-tip-between-teeth gesture on every ð word, keeping your voice buzzing.
  3. Record yourself reading it slowly and carefully.
  4. Play it back and mark any ð that sounded like a hard 'd' or a 'z' hiss instead.
  5. Repeat the sentence three more times, gradually speeding up while watching your tongue in the mirror.
  6. Read it once more at natural conversational speed.

Success check: Every ð should show a brief tongue-tip appearance with a continuous buzz, even when you're speaking at normal speed.

A practice sentence with every ð word underlined and a small vibration icon marking the buzz cue.
Marked sentenceA practice sentence with every ð word underlined and a small vibration icon marking the buzz cue.
Find every ð in the sentence and keep the tongue-tip buzz going each time, even at speed.

Why this works. Because ð appears constantly in high-frequency function words, embedding it in a full sentence forces repeated, rapid re-execution of the tongue-protrusion-plus-buzz gesture amid the coarticulatory pressure of neighboring sounds, testing whether the new gesture has become automatic rather than a careful, isolated performance.

Sources (1)
  • Training the pronunciation of L2 vowels under different conditions: the use of non-lexical materials and masking noise. — Joan C Mora, Mireia Ortega, Ingrid Mora-Plaza et al., 2022
    • Non-lexical training materials produced greater pronunciation improvements for L2 learners compared to lexical (word-based) materials.
    • Masking noise during training hindered performance specifically for participants using non-lexical stimuli, but did not negatively affect those using words.
    • Training-induced gains in vowel production were more pronounced when vowels appeared in sentences than when elicited in isolated words.

Buzz It Big, Then Bring It Back

sourced
exaggeration 5 min ★★☆ mirror recorder
  1. Say 'this' with your tongue tip pushed far out between your teeth and an extra-loud, extra-long buzz.
  2. Hold the exaggerated buzz for two full seconds before finishing the word.
  3. Now say 'this' again with the tongue only slightly poking out, closer to natural speech, but keep the buzz clearly audible.
  4. Compare: both versions should buzz, just with different amounts of visible tongue and length.
  5. Repeat the big-then-small pattern with 'that', 'mother', and 'though'.
  6. Finish with five natural-speed repetitions of all four words.

Success check: Your natural-speed ð should still show a small tongue-tip peek and a clear buzz — a smaller version of the exaggerated one, not a collapse into 'd' or 'z'.

Tongue pushed far out past the teeth, extra-loud, extra-long buzz.
ExaggeratedTongue pushed far out past the teeth, extra-loud, extra-long buzz.
Tongue tip only slightly poking out, brief but clear buzz at normal speed.
NaturalTongue tip only slightly poking out, brief but clear buzz at normal speed.
Buzz it big first, then shrink the gesture down to natural size without losing the buzz.

Why this works. Overshooting both the tongue protrusion and the voiced buzz beyond what natural speech requires exaggerates the contrast between ð and the learner's habitual d/z substitutes, strengthening the new perceptual-motor category before it is dialed back to a natural, subtler articulation, consistent with findings that acoustic exaggeration during training improves category formation.

Sources (1)

Say the Pairs, Feel the Buzz

sourced
minimal pair produce 6 min ★★☆ mirror recorder
  1. In the mirror, say 'then', watching your tongue tip rest lightly between your teeth while your voice buzzes.
  2. Now say 'den' right after, pulling the tongue back to make a full stop behind your teeth.
  3. Alternate: then-den, then-den, five times, exaggerating the tongue position switch.
  4. Repeat with though-dough and breathe-breed.
  5. Record all three pairs.
  6. Play back and confirm the ð words show a continuous buzz and visible tongue-tip peek, while the d/z words don't.

Success check: You should feel a steady vibration on your tongue tip for ð words, versus a quick stop or a hiss from further back on the d/z words.

Tongue tip briefly visible between the teeth, continuous buzz.
Saying 'then'Tongue tip briefly visible between the teeth, continuous buzz.
Tongue tip pulled back, quick stop, no protrusion visible.
Saying 'den'Tongue tip pulled back, quick stop, no protrusion visible.
Watch your tongue tip pop out and buzz only on the ð word, not on its d/z twin.

Why this works. Producing minimal pairs back-to-back forces a rapid articulatory switch between the tongue-protruded continuous buzz of ð and the retracted stop or fricative (d/z) already automatized in Hungarian, strengthening the motor contrast needed to keep the two categories separate in running speech.

Sources (1)

Push Your 'd' Forward Into ð

consensus
proxy motor 5 min ★★☆ mirror
  1. Say a crisp 'd' and notice your tongue tip touching just behind your top front teeth, with your voice buzzing.
  2. Say 'd' again, letting the tongue tip slide a bit further forward, to the back of your top teeth.
  3. Push just a little more so the tongue tip peeks out between your teeth.
  4. Instead of stopping the airflow completely like 'd' does, let the air and voice buzz continuously over the tongue tip.
  5. Practice the transition: 'd... d... voiced-th... voiced-th...', feeling the tongue creep forward each time.
  6. Attach the final voiced position to the word 'this', starting from the 'd' spot and sliding forward each rep.

Success check: You should feel the tongue slide forward from your familiar 'd' spot, ending with the tip lightly between your teeth and a continuous buzz instead of a quick stop.

Tongue tip touching the alveolar ridge, voice buzzing but air fully stopped.
Familiar 'd'Tongue tip touching the alveolar ridge, voice buzzing but air fully stopped.
Tongue tip slid slightly forward between the teeth, voice buzzing continuously with airflow, no stop.
Target ðTongue tip slid slightly forward between the teeth, voice buzzing continuously with airflow, no stop.
Take your 'd' and just push the tongue tip a little further forward, letting the buzz keep flowing.

Why this works. ð recruits the same tongue-tip fronting and vocal-fold-vibration muscles already used for the native voiced alveolar stop 'd'; sliding the familiar 'd' tongue-tip gesture a few millimeters further forward past the alveolar ridge, and releasing it as a continuous buzz instead of a stop, repurposes an existing motor-voicing program instead of building an entirely new one.

Sources (1)
  • Celce-Murcia, M., Brinton, D., & Goodwin, J. (2010). Teaching Pronunciation.

Reader ratings and feedback are coming soon.

Sources (1)
  • Wells, J.C. (1982). Accents of English.