briefvsbrieflyWhat's the difference?

Quick tell: brief is a adjective, briefly is an adverb, so they fill different roles in a sentence.

Which to use

“brief” is an adjective and “briefly” is an adverb - they look or sound alike but fill different roles in a sentence.

#2,881
“brief” frequency rank
#4,923
“briefly” frequency rank
7804
confusion score

Side-by-Side Comparison

Feature brief briefly
Definition Of short duration; happening quickly. In a brief manner, summarily.

Where the eye mixes brief and briefly

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

5 ch
brief
7 ch
briefly

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: brief is /bɹiːf/ while briefly is /ˈbɹiːfli/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “brief” sits inside “briefly”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 7804, derived from the frequency rank of both members and their visual similarity.

brief is recorded at frequency rank #2,881, classified as anadj, pronounced /bɹiːf/. briefly is at rank #4,923, tagged as anadv, pronounced /ˈbɹiːfli/.

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 7804, this pair ranks #505,511 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of brief vs briefly

Shared letters: befir. Private to "brief": -. Private to "briefly": ly.

"brief" · 5 letters · shape CCVVC  ·  "briefly" · 7 letters · shape CCVVCCV

Known mistypes of this pair

  • briefbbrief · biref · breif · brieff · brife · brrief · rbief
  • brieflybbriefly · birefly · breifly · brieffly · brieflly · brieflyy · briefyl · brielfy

Frequently Asked Questions

Can "brief" and "briefly" be used interchangeably?
No - they are not even the same part of speech. "brief" is an adjective and "briefly" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "brief" or "briefly"?
"brief" is the more common of the two: it sits at frequency rank #2,881 in our English list, against #4,923 for "briefly". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list