capable vs capsule, What's the Difference?

Which to use

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

#2,429
“capable” frequency rank: #11,176
“capsule” frequency rank: 13605
confusion score

Side-by-Side Comparison

Feature	capable	capsule
Definition	Able and efficient; having the ability needed for a specific task; having the disposition to do something; permitting or being susceptible to something.	A membranous envelope.

Where the spellings diverge

Shared letters are muted; the letters that actually set capable and capsule apart are highlighted. They share 5 letters in sequence, which is exactly why the eye skips the difference.

7 ch

capable

7 ch

capsule

Spelling & Dictionary Insight

capable and capsule form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They share most of their letters but differ in 2 positions - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 13605, derived from the frequency rank of both members and their visual similarity.

capable is recorded at frequency rank #2,429, classified as anadj, pronounced /ˈkeɪ.pə.bəl/. capsule is at rank #11,176, tagged as anoun, pronounced /ˈkæps(ə)l/.

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 13605, this pair ranks #474,807 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Frequency comparison

capable#2,429

capsule#11,176

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "capable" and "capsule" be used interchangeably?

No, "capable" and "capsule" 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 capable vs capsule

The fastest way to pick the right one every time.

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