What is the meaning of smelt?

noun

• Small cold-water silvery fish; migrate between salt and fresh water.
• Small trout-like silvery marine or freshwater food fishes of cold northern waters.

verb

• Inhale the odor of; perceive by the olfactory sense.
  • synonyms: smell
• Emit an odor.
  • usage: "The soup smells good"
  • synonyms: smell
• Smell bad.
  • usage: "He rarely washes, and he smells"
  • synonyms: smell
• Have an element suggestive (of something. )
  • usage: "his speeches smacked of racism"; "this passage smells of plagiarism"
  • synonyms: smack, reek, smell
• Become aware of not through the senses but instinctively.
  • usage: "I sense his hostility"; "i smell trouble"; "smell out corruption"
  • synonyms: smell, smell out, sense
• Extract (metals) by heating. .