Gavel n. : A gable.

Gavel n. : A small heap of grain, not tied up into a bundle.

Gavel n. : The mallet of the presiding officer in a legislative body, public assembly, court, masonic body, etc.

Gavel n. : A mason's setting maul.

Gavel n. : Tribute; toll; custom. [Obs.] See Gabel.

Example:
Where did the Gavel originate and what is the purpose behind a judge having one by his or her side in court?

Taxonomy
gavel, rap, chair, free encyclopedia, History, symbol, presiding officer, punctuate, tap, raise, seats, assembly, United States Senate, search, sound block, sounding, qualities, authority.

Defination from the web: