There are many units in the starcraft universe. a Unit is usually a millitary weapon, vehicle, soldier, starship, ect.
“"I fear nothing!"-Crusader The crusader is a protoss unit that belongs to the cavias tribe. it...Crusader
“The hawkalisk is a zerg that has main body of a zergling and the wings of a scourge. unlike...Hawkalisk
“"Say goodnight!"-Asassin before shooting his target. The asassin is a terran millitary unit...Assasin (Unit)
“The dragalisk is a unit designed by the dactur brood. It is a hydralisk body with with a...Dragalisk
“The warlord is a zerg unit of the dactur brood. It is an upgraded overlord that has the mouth...Warlord