noun

• (countable, uncountable) Any coniferous tree of the genus Pinus.
  "The northern slopes were covered mainly in pine."
• (countable) Any tree (usually coniferous) which resembles a member of this genus in some respect.
• (uncountable) The wood of this tree.
• (archaic except Caribbean, Guyana, South Africa, Australia) A pineapple.
  ""[…] I bought a pine-apple at the same time, which I gave to Sambo. Let's have it for tiffin; very cool and nice this hot weather." Rebecca said she had never tasted a pine, and longed beyond everything to taste one."

noun

• (archaic) A painful longing.

verb

• (intransitive) To languish; to lose flesh or wear away through distress.
  "Why pine not I, and die in this distress?"
• (intransitive) To long, to yearn so much that it causes suffering.
  "Laura was pining for Bill all the time he was gone."
• (transitive) To grieve or mourn for.
• (transitive) To inflict pain upon; to torment.
  "Which way, O Lord, which way can I look, and not see some sad examples of misery? […] [O]ne is pined in prison; another, tortured on the rack; a third, languisheth under the loss of a dear son, or wife, or husband."