Bike Definition

bīk

biked, bikes, biking

noun

bikes

A bicycle.

American Heritage

Webster's New World

A motorcycle.

American Heritage

A motorbike.

American Heritage

A short form of bicycle.

Wiktionary

Synonyms:

verb

biked, bikes, biking

To travel on a bicycle or motorcycle.

Webster's New World

To ride a bike.

I biked so much yesterday that I'm very sore today.

Wiktionary

To travel by bike.

It was such a nice day I decided to bike to the store, though it's far enough I usually take my car.

Wiktionary

Synonyms:

Other Word Forms of Bike

Singular:

bike

Plural:

One explanation for the pronunciation is that bicycle is parsed to bi(cy)c(le). An alternative explanation is that bicycle is shortened to bic(ycle), and the terminal [s] is converted to a [k] because there is an underlying underspecified [k]/[s] sound, which is softened to [s] in bicycle but retained as [k] in bike; compare the letter ‘c’ (used for [k]/[s]).

From Wiktionary
From bicycle, by shortening, and possibly alteration.

From Wiktionary
Shortening and alteration of bicycle

From American Heritage Dictionary of the English Language, 5th Edition
Origin unknown.

From Wiktionary