| Spanish | English | |
|---|---|---|
| General | ||
| General | estar en guardia [v] | be on guard |
| General | estar en guardia [v] | be on one's guard |
| Idioms | ||
| Idioms | estar en guardia [v] | stay sharp |
| Idioms | estar en guardia [v] | watch out |
| Idioms | estar en guardia [v] | be on the lookout |
| Idioms | estar en guardia [v] | be on the alert |
| Idioms | estar en guardia [v] | be on the watch |
| Idioms | estar en guardia | keep one's weather eye open |
| Idioms | estar en guardia | keep one's wits about one |
| Colloquial | ||
| Colloquial | estar en guardia [v] | be guarded |
| Engineering | ||
| Engineering | estar en guardia [v] | stand guard |
| Technical | ||
| Technical | estar en guardia [v] | beware |
| Aeronautics | ||
| Aeronautics | estar en guardia | beware |
| Boxing | ||
| Boxing | estar en guardia [v] | be on guard |
| Boxing | estar en guardia [v] | be on your guard |
| Boxing | estar en guardia [v] | stay/be on your toes |
| Spanish | English | |||
|---|---|---|---|---|
| Idioms | ||||
| Idioms | estar en guardia respecto a alguien [v] | be on guard against someone | ||
| Idioms | estar en guardia respecto a alguien [v] | be on one's guard against someone | ||
| Idioms | estar en guardia ante [v] | put their guard up against | ||
| Idioms | estar en guardia contra alguien [v] | stay on guard against someone | ||
| Idioms | estar en guardia contra alguien [v] | stay on one's guard against someone | ||
| Colloquial | ||||
| Colloquial | estar en guardia en relación con [v] | be on one's guard against | ||
| Military | ||||
| Military | estar en posición de guardia [v] | be on sentry duty | ||
| Military | estar en posición de guardia [v] | be on guard | ||
| Military | estar en posición de guardia [v] | be on duty as a guard or lookout | ||
| Military | estar en posición de guardia [v] | be on the watch | ||
| Military | estar en posición de guardia [v] | be on watch | ||
