Action
Part of speech: interjection
Definition: Demanding or signifying the start of something, usually an act or scene of a theatric performance.
Part of speech: verb
Definition: To act on a request etc, in order to put it into effect.
Part of speech: noun
Definition: Something done so as to accomplish a purpose. A way of motion or functioning. A fast-paced activity. A mechanism; a moving part or assembly. The set of moving mechanical parts in a keyboard instrument which transfer the motion of the key to the sound-making device. sexual intercourse. The distance separating the strings and the fretboard on the guitar. Combat. A charge or other process in a law court (also called lawsuit and actio). A homomorphism from a group to a group of automorphisms.
Example sentence: It was character that got us out of bed, commitment that moved us into action, and discipline that enabled us to follow through.
Fulfill
Part of speech: verb
Definition: To fill up.To satisfy, carry out, bring to completion (an obligation, a requirement, etc.).To emotionally or artistically satisfy; to develop one's gifts to the fullest.To obey, follow, comply with (a rule, requirement etc.).
Example sentence: One of the great attractions of patriotism - it fulfills our worst wishes. In the person of our nation we are able, vicariously, to bully and cheat. Bully and cheat, what's more, with a feeling that we are profoundly virtuous.