noun, noun, used as a suffix
contest; comparison; competition
Used as a noun or suffix to indicate a contest or comparison, often in compound words like 食べ比べ (taste comparison) or 力比べ (strength contest).
この店では、いろいろな種類のコーヒーの飲み比べができる。
At this shop, you can do a tasting comparison of various types of coffee.
二人は腕比べをすることにした。
The two decided to have a contest of skill.
Derived from the verb 比べる (to compare). The noun form 比べ is used in compounds to indicate a comparison or contest.