Table of Contents POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
THESAURUS

WORDNET DICTIONARY

Noun beachhead has 2 senses

• beachhead(n = noun.location) Array - a bridgehead on the enemy's shoreline seized by an amphibious operation; "the Germans were desperately trying to contain the Anzio beachhead"
is a kind of bridgehead, foothold

• beachhead(n = noun.act) foothold - an initial accomplishment that opens the way for further developments; "the town became a beachhead in the campaign to ban smoking outdoors"; "they are presently attempting to gain a foothold in the Russian market"
is a kind of accomplishment, achievement

CIDE DICTIONARY

OXFORD DICTIONARY

THESAURUS

beachhead

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

For further exploring for "beachhead" in Webster Dictionary Online