Nouns

(n)command, bid, bidding, dictationan authoritative direction or instruction to do something
(n)commanda military unit or region under the control of a single officer
(n)commandthe power or authority to command“an admiral in command”
(n)commandavailability for use“the materials at the command of the potters grew”
(n)commanda position of highest authority“the corporation has just undergone a change in command”
(n)command, control, masterygreat skillfulness and knowledge of some subject or activity“a good command of French”
(n)instruction, command, statement, program line(computer science) a line of code written as part of a computer program

Verbs

(v)commandbe in command of“The general commanded a huge army”
(v)command, requiremake someone do something
(v)commanddemand as one's due“This speaker commands a high fee”, “The author commands a fair hearing from his readers”
(v)dominate, command, overlook, overtoplook down on“The villa dominates the town”
(v)control, commandexercise authoritative control or power over“control the budget”, “Command the military forces”