What is the meaning of Man-of-war?

A man whose occupation is fighting in wars; a soldier, a warrior.

A powerful armed naval vessel, primarily one armed with cannon and propelled by sails; a warship.

In full man-of-war's-man: a sailor serving on board an armed naval vessel.

Senses relating to animals.

  1. Short for man-of-war bird or man-of-war hawk: any of a number of seabirds, especially one which attacks other seabirds to take their food.
    1. A frigatebird (family Fregatidae), especially the magnificent frigatebird (Fregata magnificens).
    2. The Arctic skua (Stercorarius parasiticus).
  2. Short for Portuguese man-of-war (“Physalia physalis, a jellyfish-like marine cnidarian consisting of a floating colony of hydrozoans attached to a float”)

    Short for man-of-war bird or man-of-war hawk: any of a number of seabirds, especially one which attacks other seabirds to take their food.

    1. A frigatebird (family Fregatidae), especially the magnificent frigatebird (Fregata magnificens).
    2. The Arctic skua (Stercorarius parasiticus).

    A frigatebird (family Fregatidae), especially the magnificent frigatebird (Fregata magnificens).

    The Arctic skua (Stercorarius parasiticus).

    Short for Portuguese man-of-war (“Physalia physalis, a jellyfish-like marine cnidarian consisting of a floating colony of hydrozoans attached to a float”)

    Source: wiktionary.org