commence vs commerce, What's the Difference?

Which to use

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

#13,119
“commence” frequency rank: #3,803
“commerce” frequency rank: 16922
confusion score

Side-by-Side Comparison

Feature	commence	commerce
Definition	To begin, start.	The exchange or buying and selling of commodities; especially the exchange of merchandise, on a large scale, between different places or communities; extended trade or traffic.

Where the spellings diverge

Shared letters are muted; the letters that actually set commence and commerce apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.

8 ch

commence

8 ch

commerce

Spelling & Dictionary Insight

commence and commerce form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by a single letter - n in “commence” becomes r in “commerce” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 16922, derived from the frequency rank of both members and their visual similarity.

commence is recorded at frequency rank #13,119, classified as averb, pronounced /kəˈmɛns/. commerce is at rank #3,803, tagged as anoun, pronounced /ˈkɒm.əs/.

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 16922, this pair ranks #454,723 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Frequency comparison

commence#13,119

commerce#3,803

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "commence" and "commerce" be used interchangeably?

No, "commence" and "commerce" 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 commence vs commerce

The fastest way to pick the right one every time.

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