Definitions from Wiktionary ( )

▸ adjective:  Not permitting water or some other liquid to escape or penetrate; watertight.
▸ adjective:  (by extension) Impermeable to air or other gases; airtight.
▸ adjective:  Strongly built; also, in good or strong condition.
▸ adjective:  (figuratively)
▸ adjective:  Staying true to one's aims or principles; firm, resolute, unswerving.
▸ adjective:  Dependable, loyal, reliable, trustworthy.
▸ adjective:  (chiefly hunting) Of a hunting dog: that can be depended on to pick up the scent of, or to mark, game.
▸ adjective:  (obsolete) Cautious, restrained.
▸ adjective:  Stubborn, intransigent.
▸ noun:  (obsolete) That which stanches or checks a flow.
▸ noun:  (specifically, archaic) A plant or substance which stops the flow of blood; a styptic.
▸ noun:  (obsolete) An act of stanching or stopping.
▸ noun:  (mining) Synonym of afterdamp (“suffocating gases present in a coal mine after an explosion caused by firedamp”)
▸ verb:  Alternative spelling of stanch [(transitive, archaic except poetic) To stop the flow of (water or some other liquid).]
▸ noun:  Alternative spelling of stanch (“a floodgate by which water is accumulated, for floating a boat over a shallow part of a stream by its release; also, a dam or lock in a river”) [A floodgate by which water is accumulated, for floating a boat over a shallow part of a stream by its release; also, a dam or lock in a river.]

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