1. arrange or order by classes or categories
- How would you classify these pottery shards--are they prehistoric?
2. declare unavailable, as for security reasons
- Classify these documents
3. assign to a class or kind
- How should algae be classified?
Similar word(s): relegate
Sentences with classify as a verb:
- Should we classify "make up" as an idiom or as a phrasal verb?
- They decided to classify that information.