Definitions of quest:

• noun:   the act of searching for something

  Example: "A quest for diamonds"

• noun:   a search for an alternative that meets cognitive criteria

  Example: "A quest for wealth"

• verb:   make a search (for)

  Example: "Things that die with their eyes open and questing"

• verb:   seek alms, as for religious purposes
• verb:   search the trail of (game)

  Example: "The dog went off and quested"

• verb:   bark with prolonged noises, of dogs
• verb:   express the need or desire for; ask for

  Example: "She requested an extra bed in her room"

• name:  A surname (very rare: popularity rank in the U.S.: #68875)