Skip to main content
to key out

to key out

8.4
Find the name of a plant or animal using a guide
  • phrasal verb
  • Jargon
translation icon : identificar
  • We spent the afternoon keying out insects under the supervision of our biology professor.

Examples

  • The students were able to key out the plant species using the field guide.

  • I will key out the plant species.

  • She carefully keyed out the mushroom to ensure it was safe to eat.

  • Can you key out this animal for me?

  • In the field, we spent hours keying out the various plants we encountered along the trail.

  • The students learned how to key out different species of birds using a dichotomous key.

  • Using the guidebook, she was able to easily key out the plants in her garden.

Synonyms

to identify
vsto key out
1.8

Say who someone is or what something is

uses a structured biological decision tool rather than general recognition
to pick out
vsto key out
64 3.0

Notice a sound or sight among other things

involves systematic identification with a decision tool not simple sensory spotting
to key
vsto key out
  • Specialized
4 8.0

To identify a plant or animal using steps in a guide

focuses more on using a dichotomous tool for biological identification

Surface Forms

key out infinitive
keyed out past
keyed out past participle
keying out present participle
keys out third person singular

Morphology

key + out

The overall meaning is based on the verb 'key' (to identify using a systematic key) plus a particle sense of completion or making identification explicit, so a learner who knows the specialized verb sense could infer the phrase. However, 'key' as a verb is technical and rare and the contribution of 'out' here is somewhat idiomatic/particle-like rather than a fully regular compositional pattern, so the sense is not completely transparent to a general B1 learner.

Etymology

The verb key out comes from the idea of a key, a simple guide with choices you follow step by step, and out meaning 'reach the answer'. When you key out a plant or insect you follow the choices until you reach the name, so key out means 'to identify' the species.