Flanks vs Wing

When to use each in English, with meaning, register, and examples.

Flanks

Beyond 10,000 (less common)

Wing

Top 2,000 (common)B1noun
Most common: Wing
 FlanksWing
Pronunciation🇬🇧 //flæŋks//🇺🇸 //flæŋks//🇬🇧 /["/wɪŋ/"]/🇺🇸 /["/wɪŋ/"]/
MeaningThe sides of something, especially in military or body context.A part of a bird or airplane that helps it fly.
ExampleThe soldiers advanced on the enemy's flanks.The eagle spread its wing and soared high above the mountains.
RegisterNeutralNeutral
How commonBeyond 10,000 (less common)Top 2,000 (common)
CEFR level-B1
Part of speechnoun
Collocationsattack the flanks, defend the flanks, flank movements, flank steak, muscles of the flanksleft, right, front, pair, extend, flex, open, beat, flap, flutter, tip, feathers, span, on a/​the wing, under a/​the wing, aircraft, left, port, tip, north, south, etc., add, build, in a/​the wing, nearside, offside, front, damage, dent, mend, mirror, in a/​the wing, left, right, conservative, on a/​the wing
Antonymsrear, center, frontbody, center
Common mistakesConfused with 'flank' used as a verb, meaning to be at the side of., Misunderstanding which part of the body constitutes the flanks., Using 'flanks' in singular form incorrectly.Confusing 'wing' with 'winged' when describing things., Using 'wing' as a verb incorrectly., Forgetting to pluralize 'wing' when referring to multiple wings.
Usage notesUsed mainly in military contexts, but also refers to the side area of the body. In sports, it can mean the sides of a playing area.Use 'wing' when discussing birds, planes, or metaphors related to flight. It's not suitable for non-flying objects unless used in a figurative way.

See it in real clips

Flanks
Wing

Frequently asked questions: Flanks vs Wing

What's the difference between Flanks and Wing?

Flanks: The sides of something, especially in military or body context. Wing: A part of a bird or airplane that helps it fly.

Which is more common: Flanks and Wing?

Wing is the most common in everyday English.

Can you show an example of each?

Flanks: The soldiers advanced on the enemy's flanks. Wing: The eagle spread its wing and soared high above the mountains.

Can I use Flanks and Wing interchangeably?

Not always. Flanks and Wing are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons