in
preposition
°Contained by.
"The dog is in the kennel."
°Surrounded by.
"We are in the enemy camp."
verb
°(not) Located indoors, especially: at home or the office .
"Is Mr. Smith in?"
°Moving to the interior of a defined space, such as a building or room.
"Suddenly a strange man walked in."
noun
°A position of power or a way to get it.
"His parents got him an in with the company"
°(in games) The state of a batter/batsman who is currently batting.
adjective
°In fashion; popular.