captain

sea captain

master, pilot

commanding officer

admiral, commodore, vice admiral

mate, officer

commissioned officer, field officer

directress, mistress

administrator, commander, director, executive, general, governor, hierarch, higher-up

leadman, manager, overseer, principal, skipper, standard-bearer, steward, straw boss, superintendent, superior, supervisor

dominator, lord, overlord, potentate, ruler, sovereign (also sovran)

figurehead

slave driver

baron, czar (also tsar), king, magnate, mogul, president, prince

big cheese, big gun, bigwig, top dog, top gun

cohead, coleader

employer, gaffer [British], ganger [British]

micromanager

subchief, subdirector

big boy, big cheese, bigfoot, biggie, big gun, big shot, big wheel, bigwig, fat cat, figure, heavy, heavyweight, honcho, kahuna, main man, mover and shaker, nabob, nawab, notable, personage, pooh-bah (also poo-bah), supremo [chiefly British], VIP

celebrity, personality, star, superstar

deity, demigod, god

administer, command, control, direct, guide, manage, order, run, shepherd, show, steer

monitor, preside (over)

govern, reign, rule

conduct, direct, head, lead

administer, manage, micromanage, oversee, regulate, superintend, supervise

dictate, dominate, domineer, lord (it over), master, oppress, reign (over), tyrannize

conquer, subdue, subjugate

control, dominate

direct, govern, handle, manage, oversee, regulate, run, superintend, supervise