1. (verb)search, seek, look for try to locate or discover, or try to establish the existence of
"The police are searching for clues"; "They are searching for the missing man in the entire county"
2. (verb)search, look search or seek "We looked all day and finally found the child in the forest"; "Look elsewhere for the perfect gift!"
3. (verb)research, search, explore 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"
4. (verb)search subject to a search "The police searched the suspect"; "We searched the whole house for the missing keys"