English主要词典
guard
Universal Words
noun, verb
noun
people who protect
1 [C] a person, such as a soldier, a police officer or a prison officer, who protects a place or people, or prevents prisoners from escaping:
a security guard * border guards * The prisoner slipped past the guards on the gate and escaped. * A guard was posted outside the building.
compareWARDER
seealsoBODYGUARD, COASTGUARD, LIFEGUARD
2 [C+sing./pl.v.] a group of people, such as soldiers or police officers, who protect sb/sth:
the captain of the guard * the changing of the guard (= when one group replaces another) * The guard is / are being inspected today. * Fellow airmen provided a guard of honour at his wedding. * The President always travels with an armed guard.
seealsoNATIONALGUARD, OLDGUARD, REARGUARD
3 [U] the act or duty of protecting property, places or people from attack or danger; the act or duty of preventing prisoners from escaping:
a sentry on guard (= at his or her post, on duty) * to do guard duty * The escaped prisoner was brought back under armed guard. * The terrorist was kept under police guard. * One of the men kept guard, while the other broke into the house.
soldiers
4 (the Guards) [pl.] (in Britain and some other countries) special REGIMENTS of soldiers whose original duty was to protect the king or queen:
the Scots Guards * a Guards officer
against injury
5 [C] (often in compounds) something that covers a part of a person's body or a dangerous part of a machine to prevent injury:
a mouth guard * Ensure the guard is in place before operating the machine.
seealsoFIREGUARD, MUDGUARD, SAFEGUARD, SHINGUARD
on train
6 [C] (BrE, becoming old-fashioned) = CONDUCTOR(2)
in boxing / fencing
7 [U] a position you take to defend yourself, especially in a sport such as boxing or FENCING:
to drop / keep up your guard * (figurative) In spite of the awkward questions the minister never let his guard fall for a moment.
IDIOMS
be on your guard to be very careful and prepared for sth difficult or dangerous
mount / stand / keep guard (over sb/sth) to watch or protect sb/sth:
Four soldiers stood guard over the coffin.
off (your) guard not careful or prepared for sth difficult or dangerous:
The lawyer's apparently innocent question was designed to catch the witness off (his) guard.
verb [VN]
1 to protect property, places or people from attack or danger:
The dog was guarding its owner's luggage. * political leaders guarded by the police * You can't get in; the whole place is guarded. * (figurative) a closely guarded secret
2 to prevent prisoners from escaping:
The prisoners were guarded by soldiers.
PHRASALVERBS
guard against sth to take care to prevent sth or to protect yourself from sth:
to guard against accidents / error / loss / disease