speakvsspeedWhat's the difference?

Quick tell: speak is a verb, speed is a noun, so they fill different roles in a sentence.

Which to use

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

#1,004
“speak” frequency rank
#1,099
“speed” frequency rank
2103
confusion score

Side-by-Side Comparison

Feature speak speed
Definition To communicate with one's voice, to say words out loud. The state of moving quickly or the capacity for rapid motion.

Where the eye mixes speak and speed

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
speak
5 ch
speed

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: speak is /spiːk/ while speed is /spiːd/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 2103, derived from the frequency rank of both members and their visual similarity.

speak is recorded at frequency rank #1,004, classified as averb, pronounced /spiːk/. speed is at rank #1,099, tagged as anoun, pronounced /spiːd/.

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 2103, this pair ranks #525,851 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of speak vs speed

Shared letters: eps. Private to "speak": ak. Private to "speed": d.

"speak" · 5 letters · shape CCVVC  ·  "speed" · 5 letters · shape CCVVC

Known mistypes of this pair

  • speakpseak · sepak · spaek · speakk · speka · sppeak · sspeak
  • speedpseed · seped · spede · speedd · sppeed · sspeed

Frequently Asked Questions

Can "speak" and "speed" be used interchangeably?
No - they are not even the same part of speech. "speak" is a verb and "speed" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "speak" or "speed"?
"speak" is the more common of the two: it sits at frequency rank #1,004 in our English list, against #1,099 for "speed". 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