tank

noun

• 1a large receptacle or storage chamber, especially for liquid or gas.
• the container holding the fuel supply in a motor vehicle: the trucks all had a full tank of gasoline
• a receptacle with transparent sides in which to keep fish; an aquarium.
• Indian & Australian/NZ a reservoir.

• 2a heavy armoured fighting vehicle carrying guns and moving on a continuous articulated metal track.

• 3short for tank engine.a large class of 0-6-0 tanks

• 4North American informal a cell in a police station or jail.

• 5short for tank top.

verb

• 1 [no object] fill the tank of a vehicle with fuel:the cars stopped to tank up
• (be/get tanked up) British informal drink heavily; become drunk:they get tanked up before the game

• 2 [no object] US informal fail completely, especially at great financial cost: the previous movie had tanked at the box office
• [with object] North American informal (in sport) deliberately lose or fail to finish (a match): the powerful baseliner had tanked the match

• 3 [with object] informal, chiefly Scottish defeat heavily:Rangers tanked the local side 8-0