Synonyms for board

noun

1. A piece of thin lumber

   plank, lath, strip, slat; see beam 1, lumber.

2. Meals

   food, mess, fare, provisions, keep, victuals, rations, eats*; see also food, meal 2.

3. A body of men having specific responsibilities

   jury, council, cabinet; see committee.

across the board

go by the board

on board

verb

1. To cover

   plank, tile, paper, batten; see cover 1.

2. To go aboard

   mount, embark, embus, entrain, enplane, put to sea, cast off, go on board, get on; see also climb 2, leave 1.

   Antonyms disembark, get off, go ashore.

3. To take care of

   lodge, room, put up, harbor, bed, accommodate, feed, house, care for, let crash*; see also accommodate 3, feed.

   Antonyms neglect*, reject, starve.