noun - someone who is interested in a particular subject and knows a lot about it
adjective - having a pale yellow-brown colour
adjective, informal - of poor quality
verb, literary - to hide your true feelings, thoughts, or intentions, especially by pretending or giving a false impression
noun - a bed that can be folded up vertically into a wall or a cabinet when it is not being used
verb, literary - to drink alcohol and enjoy yourself with other people in a noisy and lively way