Abbreviation of Insert.

(China) Short for Instagram.

simple past tense and past participle of inn

(law) Abbreviation of insurance.

plural of be-in

The quality of being in, or inside.

(cricket) The ten-minute interval between one side's innings ending and the other side's beginning.

(baseball) Additional innings needed to break a tie.

(baseball) The first, second, and third innings. / The early stages of any project or extended event.

(baseball) The seventh, eighth, and ninth innings of a game.