Noun

(en noun)

A precious stone, usually of substantial monetary value or prized for its beauty or shine.

(Milton)

* {{quote-magazine, date=2012-03

, author=Lee A. Groat , title=Gemstones , volume=100, issue=2, page=128 , magazine= citation , passage=Although there are dozens of different types of gems , among the best known and most important are diamond, ruby and sapphire, emerald and other gem forms of the mineral beryl, chrysoberyl, tanzanite, tsavorite, topaz and jade.}}

(figuratively) any precious or highly valued thing or person

She's an absolute gem .

Anything of small size, or expressed within brief limits, which is regarded as a gem on account of its beauty or value, such as a small picture, a verse of poetry, or an epigram.

a gem of wit

(obsolete) a gemma or leaf-bud

* Denham

From the joints of thy prolific stem / A swelling knot is raised called a gem .

a type of geometrid moth, Orthonama obstipata

(computing) A package containing programs or libraries for the Ruby programming language.

Noun

(en noun)

(British) a type of flattish bun, usually cut in two horizontally, toasted and spread with butter, etc, before being eaten

(US) A type of individual bread such as corn, bran, banana or zucchini bread often sliced and spread with butter, etc before being eaten.

(especially US) (informally) A cupcake without frosting, but sometimes glazed.

(computing) a mechanism used in the analogous to the cookie mechanism and which permits a program running in a browser to perform operations on a client machine

(slang) a term of endearment

(sexual slang) a vulva

(baseball, slang) a less talented player; one who muffs, or drops the ball

(slang) a charming, attractive young man