radarvsradialWhat's the difference?

Quick tell: radar is a noun, radial is an adjective, so they fill different roles in a sentence.

Which to use

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

#5,160
“radar” frequency rank
#16,104
“radial” frequency rank
21264
confusion score

Side-by-Side Comparison

Feature radar radial
Definition In full primary radar: a method of detecting a distant object and determining its position, velocity, or other characteristics by analysing radio waves (usually microwaves) which are sent towards the object and which reflect off its surfaces; also, the field of study of this method. Arranged like rays that radiate from, or converge to, a common centre.

Where the spellings diverge

Shared letters are muted; the letters that actually set radar and radial apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

5 ch
radar
6 ch
radial

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: radar is /ˈɹeɪdɑː/ while radial is /ˈɹeɪdi.əl/. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 21264, derived from the frequency rank of both members and their visual similarity.

radar is recorded at frequency rank #5,160, classified as anoun, pronounced /ˈɹeɪdɑː/. radial is at rank #16,104, tagged as anadj, pronounced /ˈɹeɪdi.əl/.

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 21264, this pair ranks #425,128 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of radar vs radial

Shared letters: adr. Private to "radar": -. Private to "radial": il.

"radar" · 5 letters · shape CVCVC  ·  "radial" · 6 letters · shape CVCVVC

Known mistypes of this pair

  • radarardar · raadr · radarr · raddar · radra · rdaar · rradar
  • radialardial · radail · raddial · radiall · radila · raidal · rdaial · rradial

Frequency comparison

radar#5,160
radial#16,104

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "radar" and "radial" be used interchangeably?
No - they are not even the same part of speech. "radar" is a noun and "radial" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "radar" or "radial"?
"radar" is the more common of the two: it sits at frequency rank #5,160 in our English list, against #16,104 for "radial". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering radar vs radial

The fastest way to pick the right one every time.

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

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

Source: FrequencyWords open word-frequency list