subtlyvssupplyTell them apart

Quick tell: subtly is a adverb, supply is a verb, so they fill different roles in a sentence.

Which to use

“subtly” is an adverb and “supply” is a verb - they look or sound alike but fill different roles in a sentence.

#19,709
“subtly” frequency rank
#1,651
“supply” frequency rank
21360
confusion score

Side-by-Side Comparison

Feature subtly supply
Definition With subtleness, in a subtle manner; with cleverness rather than brute force. To provide (something), to make (something) available for use.

Where the eye mixes subtly and supply

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. subtly and supply follow the identical consonant-vowel pattern (CVCCCV). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
subtly
6 ch
supply

Look-alike desk: subtly vs supply

These two trip readers on the page rather than in the ear: subtly is /ˈsʌt.li/ while supply is /səˈplaɪ/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adverb vs verb), which is usually the fastest check. Our composite confusion score for this pair is 21360, derived from the frequency rank of both members and their visual similarity.

subtly is recorded at frequency rank #19,709, classified as anadv, pronounced /ˈsʌt.li/. supply is at rank #1,651, tagged as averb, pronounced /səˈplaɪ/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 21360, this pair ranks #424,474 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of subtly vs supply

Shared letters: lsuy. Private to "subtly": bt. Private to "supply": p.

"subtly" · 6 letters · shape CVCCCV  ·  "supply" · 6 letters · shape CVCCCV

Known mistypes of this pair

  • subtly ← sbutly · ssubtly · subbtly · sublty · subtlly · subtlyy · subttly · subtyl
  • supply ← spuply · ssupply · suplpy · suply · supplly · supplyy · suppyl · uspply

Frequently Asked Questions

Is swapping "subtly" for "supply" ever safe?
No - they are not even the same part of speech. "subtly" is an adverb and "supply" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "subtly" or "supply" show up more?
"supply" is the more common of the two: it sits at frequency rank #1,651 in our English list, against #19,709 for "subtly". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "subtly" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "supply" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #424,474 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "subtly" and "supply" also get mixed up with nearby pairs, the highest-scored neighbour is "subtly vs surly". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #424,474 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list