- a position established by invading troops on an enemy shore
- a position gained as a secure starting point for any action; foothold
See beachhead in American Heritage Dictionary 4
- A position on an enemy shoreline captured by troops in advance of an invading force.
- A first achievement that opens the way for further developments; a foothold: “It is not yet clear whether the ecologists will establish a beachhead in the economists' carefully constructed intellectual empire” (Peter Passell).
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