What is the meaning of go down?

verb

• Move downward and lower, but not necessarily all the way.
  • usage: "The temperature is going down"; "The barometer is falling"; "The curtain fell on the diva"; "Her hand went up and then fell again"
  • synonyms: descend, fall, come down
• (v.) ()
  • synonyms: sink, settle, go under
• Grow smaller.
  • usage: "Interest in the project waned"
  • synonyms: decline, wane
• Be recorded or remembered.
  • usage: "She will go down as the first feminist"
• Be ingested.
  • usage: "This wine sure goes down well"; "The food wouldn't go down"
• Be defeated.
  • usage: "If America goes down, the free world will go down, too"
• Disappear beyond the horizon.
  • usage: "the sun sets early these days"
  • synonyms: set, go under
• Stop operating.
  • usage: "My computer crashed last night"; "The system goes down at least once a week"
  • synonyms: crash