impact vs implant, What's the Difference?

Which to use

“impact” is a noun and “implant” is a verb - they look or sound alike but fill different roles in a sentence.

#1,273
“impact” frequency rank: #15,428
“implant” frequency rank: 16701
confusion score

Side-by-Side Comparison

Feature	impact	implant
Definition	The striking of one body against another; collision.	To fix firmly or set securely or deeply.

Where the spellings diverge

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

6 ch

impact

7 ch

implant

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: impact is /ˈɪmpækt/ while implant is /ɪmˈplɑːnt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 16701, derived from the frequency rank of both members and their visual similarity.

impact is recorded at frequency rank #1,273, classified as anoun, pronounced /ˈɪmpækt/. implant is at rank #15,428, tagged as averb, pronounced /ɪmˈplɑːnt/.

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 16701, this pair ranks #456,089 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of impact vs implant

Shared letters: aimpt. Private to "impact": c. Private to "implant": ln.

"impact" · 6 letters · shape VCCVCC · "implant" · 7 letters · shape VCCCVCC

Known mistypes of this pair

impact ← imapct · immpact · impacct · impactt · impatc · impcat · imppact · ipmact
implant ← imlpant · immplant · impalnt · implannt · implantt · implatn · impllant · implnat

Frequency comparison

impact#1,273

implant#15,428

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "impact" and "implant" be used interchangeably?

No - they are not even the same part of speech. "impact" is a noun and "implant" a verb, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "impact" or "implant"?

"impact" is the more common of the two: it sits at frequency rank #1,273 in our English list, against #15,428 for "implant". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering impact vs implant

The fastest way to pick the right one every time.

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