Definition of "hacker" in English

noun

1. Someone who hacks.

   • A hacker hacked into his computer account yesterday.

2. Something that hacks; a device or tool for hacking; specifically, an axe used for cutting tree branches or wood.

noun

1. (US, road transport) One who operates a taxicab; a cabdriver.

verb

1. (intransitive, chiefly British, dialectal, archaic) To speak with a spasmodic repetition of vocal sounds; to stammer, to stutter; also, to mumble and procrastinate in one's speech; to hem and haw.