noun
plural guards
[noncount] :a state in which someone is carefully looking for possible danger, threats, problems, etc.
[count] :a person whose job or duty is to watch and protect someone or something
[count] :a group of people (such as soldiers) who protect a person or place
c the Guards :soldiers who protect a king or queen
[count] something that keeps an unwanted result or effect from happening - often + against
a special part or device that protects someone or something from injury or damage
[count] a American football :either one of two players who play in positions on either side of the center
b basketball :either one of two players who usually play away from the basket and control their team's play when they are trying to score points - see also point guard
[count] Brit :conductor
off guard
in an unprepared state :not ready
under guard
in the position of someone (such as a prisoner) who is being watched by a guard
verb
guards; guarded; guarding
[+ obj] to watch (someone) in order to prevent escape
to protect (someone or something) from danger or attack
to be careful about not telling or talking about (something, such as a secret)
sports :to try to keep (an opponent) from scoring (especially in basketball)
guard against
[phrasal verb]
guard against (something) :to try to keep (something) from happening