verb

• (transitive) To bring up to maturity, as offspring; to educate; to instruct; to foster.
  "He wants a father to protect his youth, and rear him up to virtue."
• (transitive, said of people towards animals) To breed and raise.
  "The family has been rearing cattle for 200 years."
• (intransitive) To rise up on the hind legs.
  "The horse was shocked, and thus reared."
• (intransitive, usually with "up") To get angry.

adv

• (British, dialect) early; soon
  "Then why does Cuddy leave his cot so rear!"

noun

• (military) Specifically, the part of an army or fleet which comes last, or is stationed behind the rest.
  "When the fierce Foe hung on our brok'n Rear"
• (anatomy) The buttocks or bottom.

verb

• (transitive, vulgar, British) To sodomize (perform anal sex)