research.

1. Noun

   systematic investigation to establish facts

2. Noun

   a search for knowledge

   their pottery deserves more research than it has received

3. Verb

   attempt to find out in a systematically and scientific manner

   The student researched the history of that word

4. Verb

   inquire into

   the students had to research the history of the Second World War for their history project

   He searched for information on his relatives on the web

   Scientists are exploring the nature of consciousness

Open English WordNet · CC BY 4.0. Attribution and changes.

1. Nouncountabledialectaluncountableusually

   Diligent inquiry or examination to seek or revise facts, principles, theories, applications, etc. (that are currently available, or that are familiar to oneself).

2. Nouncountabledatedusually

   A particular instance or piece of research.

3. Verbtransitive

   To search or examine with continued care; to seek diligently.

4. Verbintransitive

   To make an extensive investigation into.

5. Verbtransitive

   To search again.

6. Verbintransitive

   To receive a certain response in market research.

Wiktionary contributors · CC BY-SA 4.0. Attribution and changes.