The side of a cassette tape or record that holds the primary track. / (by extension) The track on the A-side of a tape or record. / The first track on a compact disc single.

Separate from the main course of a meal. / Supplementary or in addition to one's usual job or income. / Additional, surreptitious; often with a connotation of dishonesty, illegality or adultery.

(geography, historical) An ancient city on a small peninsula on the Mediterranean coast of Anatolia, settled by Greeks from Cyme.

straight edge of an object

Moving or turning back and forth.

(rare, nonstandard) Of or relating to the side (of something); lateral.

(rare, nonstandard) To the side; sideways; laterally; sideling; obliquely; indirectly.

simple past tense and past participle of side with

Third-person singular simple present indicative form of side with

present participle of side with