Synonyms of 'beachhead'

acropolis, advance guard, airhead, avant-garde, bastion, battle line, blockhouse, bridgehead, bunker, castle, citadel, donjon, fastness, forefront, fort, fortress, front, front line, garrison, hold, keep, line, mote, motte, outguard, outpost, peel, pillbox, pioneer, point, post, precursor, railhead, rath, scout, spearhead, stronghold, strong point, tower, van, vanguard, ward