keepvskeyWhat's the difference?

Quick tell: keep is a noun, key is an adjective, so they fill different roles in a sentence.

Which to use

“keep” is a noun and “key” is an adjective - they look or sound alike but fill different roles in a sentence.

#14,880
“keep” frequency rank
#10,384
“key” frequency rank
25264
confusion score

Side-by-Side Comparison

Feature keep key
Definition a torre principal de um castelo ou fortaleza indispensável

Where the spellings diverge

Shared letters are muted; the letters that actually set keep and key apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch
keep
3 ch
key

Spelling & Dictionary Insight

keep and key form a confusable pair in the Portuguese index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 25264, derived from the frequency rank of both members and their visual similarity.

keep is recorded at frequency rank #14,880, classified as anoun, pronounced /kip/. key is at rank #10,384, tagged as anadj, pronounced /kiː/.

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 25264, this pair ranks #44,087 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Frequency comparison

keep#14,880
key#10,384

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "keep" and "key" be used interchangeably?
No, "keep" and "key" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering keep vs key

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “keep”; for an adjective, it's “key”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “keep” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list