noun
EXAMPLES FROM CORPUS
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Her machinery and her accommodations for equipage and her fifty-eight-man crew were below the waterline .
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The boat burns to the waterline and sinks, leaving no surviving witnesses or evidence.
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The third struck above the waterline setting fire to the aircraft fuelling system ruptured by the first two hits.
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There are entrances at different levels, including some below the normal waterline for use in emergencies.
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There the trouble is largely above the waterline , though.
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Two of the torpedoes struck below the waterline on the port side near the aviation fuel tanks.