What is the meaning of bully?

noun

• A cruel and brutal fellow.
  • synonyms: tough, hooligan, ruffian, roughneck, rowdy, yob, yobo, yobbo
• A hired thug.

verb

• Be bossy towards.
  • usage: "Her big brother always bullied her when she was young"
  • synonyms: strong-arm, browbeat, bullyrag, ballyrag, boss around, hector, push around
• Discourage or frighten with threats or a domineering manner; intimidate.
  • synonyms: browbeat, swagger

adjective

• Very good.
  • usage: "he did a bully job"; "a neat sports car"; "had a great time at the party"; "you look simply smashing"
  • synonyms: bang-up, corking, cracking, dandy, great, groovy, keen, neat, nifty, not bad, peachy, slap-up, swell, smashing