used to refer to a barrier that can be opened to allow entrance or exit

a hinged, sliding, or revolving barrier at the entrance to a building, room, or vehicle

an entrance through a gate or a path

the entrance to a room or building

an unfilled space or gap allowing the passage of something

a device for controlling the flow of a liquid or gas through a pipe or duct

a device for making and breaking the connection in an electric circuit

a method or technique for achieving a particular result

a special skill or talent for doing something easily

used to refer to a group of people related by blood or marriage

a building for human habitation

a group of people with somewhat different religious beliefs

a particular philosophy or way of thinking

used to refer to a group of students who are taught together

a group of people or things that are similar in some way

a rank in the classification of organisms, below kingdom and above class

a unit used to measure certain types of weapons

a unit used to classify different courses or fields of study

a suffix attached to a word to indicate a scandal or controversy