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# classification

«classification» in Mova's school dictionary: **Sorting things into groups or classes by what they have…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (classification, classifications)

### meaning for a pupil

1) Sorting things into groups or classes by what they have in common: the classification of animals. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#m1)

2) A group or class that something is put into: the classification "mammal". [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#m2)

3) (formal) An official level or category, such as a film rating or a secret document's level. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#m3)

### sense in the lessons

In science, classification sorts living things (vertebrates and invertebrates; mammals, birds, reptiles, fish, amphibians) and materials (solids, liquids, gases) using keys. In maths, shapes and numbers are classified (odd/even, prime, triangles by sides). Phrases: classification key, system of classification, classification of.

### examples

- We made a classification key to sort the leaves. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#x1)
- The classification of animals puts whales with mammals, not fish. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#x2)
- Shapes can be classified by number of sides. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#x3)
- What is the classification of a frog? It is an amphibian. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#x4)
- Libraries use a classification system to shelve books. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#x5)
- The film's classification is PG. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/#x6)

### note

Verb: classify (classifies, classified). Countable for a group, uncountable for the act. Trap: classification depends on features you choose — a bat flies but is classified as a mammal, not a bird.

### Trees and pragmatics

[Every meaning and example of «classification» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/classification/), each sentence with its dependency tree and frames.