Gauge: to measure / to judge; measure (noun); measuring tool - The mechanic used a pressure gauge to check the tire's air pressure - This rain gauge shows we received two inches of rain last night. - It's hard to gauge her reaction to the news. - He tried to gauge the crowd's mood before starting his speech. - The carpenter used a 12-gauge nail for the project - The wire gauge indicates its thickness and capacity for electriccal current. - The engineer used a depht gauge to measure the trench - a fuel gauge in the car shows how much gas is left in the tank - you can gauge someone's personality by how they treat others. - The survey is a useful tool to gauge public opinion