plunger
definition: mechanical device that has a plunging or thrusting motion
example:
speech part: noun
synonyms:
piston
definition: hand tool consisting of a stick with a rubber suction cup at one end
example:
speech part: noun
synonyms:
plumber's helper
definition: someone who dives (into water)
example:
speech part: noun
synonyms:
diver
definition: someone who risks losses for the possibility of considerable gains
example:
speech part: noun
synonyms:
speculator