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to keep on (one's) toes

to keep on (one's) toes

5.8
Make someone stay alert and ready for surprises
  • idiom
  • Informal
translation icon : mantener alerta
  • The unexpected questions during the meeting kept everyone on their toes.

Examples

Synonyms

to keep an eye out
vsto keep on (one's) toes
  • Informal
134 3.2

Watch carefully for someone or something

causes someone else to remain alert rather than describing personal alertness
to keep one's eyes open
vsto keep on (one's) toes
97 3.8

Watch carefully for danger or a chance

causes someone else to remain alert rather than describing personal alertness
to keep watch
vsto keep on (one's) toes
30 3.1

To stay alert and watch for danger or trouble

causes someone else to remain alert rather than describing personal alertness
to stay alert
vsto keep on (one's) toes
28 3.4

To watch carefully so you notice danger or changes

causes someone else to remain alert rather than describing personal alertness
to keep one's eyes peeled
vsto keep on (one's) toes
  • Informal
16 4.6

Watch carefully for something important or dangerous

causes someone else to remain alert rather than describing personal alertness
to be on the ball
vsto keep on (one's) toes
  • Informal
13 6.3

To notice things quickly and act to fix them

causes someone else to remain alert rather than describing personal alertness
to keep one's ears open
vsto keep on (one's) toes
  • Informal
4 3.7

Stay alert to hear useful news or information

causes someone else to remain alert rather than describing personal alertness
to keep someone's head in the game
vsto keep on (one's) toes
  • Informal
4 7.4

To stay focused and calm in a difficult situation

causes someone else to remain alert rather than describing personal alertness
to be on one's toes
vsto keep on (one's) toes
1 6.3

To stay alert and ready for anything that might happen

causes someone else to remain alert rather than describing personal alertness
to keep an eye peeled
vsto keep on (one's) toes
  • Informal
1 6.0

Watch carefully for something you expect to see

causes someone else to remain alert rather than describing personal alertness
to stay on the ball
vsto keep on (one's) toes
  • Informal
1 7.7

To be alert and ready to act

causes someone else to remain alert rather than describing personal alertness
to have (one's) wits about (one)
vsto keep on (one's) toes
  • Informal
7.4

To stay alert and think quickly in difficult or unexpected situations

causes someone else to remain alert rather than describing personal alertness
to keep one's ear to the ground
vsto keep on (one's) toes
  • Informal
6.5

To pay close attention to what people say and do to know what is happening

causes someone else to remain alert rather than describing personal alertness

How Alert

vigilant
66 6.0
to keep on (one's) toes
  • Informal
5.8
to stay alert
28 3.4
to relax
1.0

Surface Forms

keeping on (one's) toes present participle
keeps on (one's) toes third person singular
kept on (one's) toes past participle

Morphology

keep + on + (one's) + toe

The phrase evokes the literal posture of being 'on one's toes' (ready to move), so a learner who knows 'keep', 'on' and 'toe(s)' can plausibly infer the sense of remaining alert or ready; the spatial/motor image maps well to the intended meaning and is cross-linguistically accessible. However, the meaning relies on a metaphorical extension of the physical posture and the specific idiomatic collocation (keep someone on their toes) is not strictly compositional, so full understanding may require some exposure.

Etymology

Keep on (one's) toes comes from the simple image of someone standing on their toes so they can move quickly. If a person or job 'keeps you on your toes' it means they make you stay 'alert' and 'ready' for surprises.