4 syllables: Di, a, go, nal. Stress on a.
deye-AG-uh-nuhl
/daɪˈæɡənəl/
Diagonal is pronounced deye-AG-uh-nuhl (/daɪˈæɡənəl/). It has four syllables (Di-a-go-nal), with the stress on "a". Diagonal is an adjective describing a line, direction, or placement that is not horizontal or vertical but slanted or oblique. It often appears in geometry, design, and everyday descriptions to indicate a sloped orientation. The term implies crossing or offsetting relative to the main axes. (2-4 sentences, 50-80 words).
adjectiveDiagonal is an adjective describing a line, direction, or placement that is not horizontal or vertical but slanted or oblique. It often appears in geometry, design, and everyday descriptions to indicate a sloped orientation. The term implies crossing or offsetting relative to the main axes. (2-4 sentences, 50-80 words)
How to Pronounce Diagonal
"Draw a diagonal line from the top left to the bottom right of the square."
"The mural features diagonal stripes that create a sense of movement."
"In the diagram, connect each vertex to its opposite corner with a diagonal."
US/UK/AU pronunciation is daɪˈæɡənəl. The primary stress is on the second syllable: di-AG-o-nal. Start with the diphthong /aɪ/ as in 'my', followed by /ˈæ/ as in 'cat', then /ɡ/ as in 'go', and finish with /ənəl/ where the second syllable is schwa typically, and final -l is light. Listen for a brief pause after the stressed syllable in careful speech. Audio tips: think 'dy-AG-uh-nuhl' with crisp g and soft, relaxed final syllable.
Common errors include stressing the first syllable instead of the second (dy-AG-uh-nuhl vs di-AG-uh-nal), and mispronouncing the /ɡ/ as a harder 'g' or as /dʒ/ in some rapid speech. Another pitfall is reducing the final -al to an over-shortened /əl/ or ignoring the schwa in the second-to-last syllable. Correction: keep the /æ/ in the stressed syllable, clearly articulate /ɡ/, and use a light, unstressed /ən/ before the final /əl/ to produce di-AG-uh-nuhl.
US and UK share the /daɪˈæɡənəl/ pattern with strong primary stress on -AG-, but rhoticity influences the ending; US tends to be rhotic, slightly stronger r-ness in linking, while UK is non-rhotic, with a softer trailing /əl/. Australian tends toward a more centralized /ə/ in the final syllable and slightly lighter /æ/ in the stressed vowel. Overall, the rhythm remains three-syllable with secondary emphasis minor.
The difficulty lies in the three-syllable rhythm with a stressed central syllable and the rapid transition from /æ/ to /ɡ/ to /ən/; the /ɡ/ can blend with a following vowel, causing slurring. Additionally, the final /əl/ can be reduced inconsistently, especially in casual speech. Practice emphasizing the /æ/ in the second syllable, crisp /ɡ/, and a clear, light /əl/ to maintain balance.
A targeted nuance is ensuring the /æ/ remains clearly distinct from adjacent vowels when moving from /ɡ/ to /ən/. Some speakers shorten the prominent vowel too much, collapsing di-AG-uh-nuhl into di-AG-nuhl. Focus on: di (short i) + AG (clear æ) + uh (schwa) + nl (light l sound). This keeps the word crisp and prevents misperceptions of it as 'di-AG-nul'.
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Diagonal comes from the Late Latin diagonalis, from diagon- (line at right angles or across) + -alis. The root diagon- derives from Greek dia- (through) and gonia (angle, corner), originally referring to lines that cut across shapes. In classical geometry, diagonals are lines joining non-adjacent vertices of polygons. The word entered English via Latin and Greek mathematical vocabularies in the medieval and early modern periods, gaining broader use in art, architecture, and navigation as designers and engineers described slanted orientations. Over time, diagonal broadened from precise geometric to generalized figural descriptions of any slanted direction in planes and spaces. First known uses appear in 14th–15th century Latin mathematical texts, with English attestations soon after as scholars translated and circulated geometric treatises across Europe.
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💡 These words have similar meanings to "Diagonal" and can often be used interchangeably.
🔄 These words have opposite meanings to "Diagonal" and show contrast in usage.
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Words that rhyme with "Diagonal"
-nal sounds
-ial sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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