club 
(klŭb)
(klŭb)n.
1.
a. A stout heavy stick, usually thicker at one end, suitable for use as a weapon; a cudgel.
b. An implement used in some games to drive a ball, especially a stick with a protruding head used in golf.
c. Something resembling a club.
2. Games
a. A black figure shaped like a trefoil or clover leaf on certain playing cards.
b. A playing card with this figure.
c. clubs (used with a sing. or pl. verb) The suit of cards represented by this figure.
3. A group of people organized for a common purpose, especially a group that meets regularly: a garden club.
4. The building, room, or other facility used for the meetings of an organized group.
5. Sports An athletic team or organization.
6. A nightclub.
v. clubbed, club·bing, clubs
v.tr.
1. To strike or beat with a club or similar implement.
2. To use (a firearm) as a club by holding the barrel and hitting with the butt end.
3. To gather or combine (hair, for example) into a clublike mass.
4. To contribute (money or resources) to a joint or common purpose.
v.intr.
1. To join or combine for a common purpose; form a club.
2. To go to or frequent nightclubs: was out all night clubbing.
[Middle English, from Old Norse klubba.]