Searcher (noun)

A person who is looking for something.

Origin:

16th century: from search + -er.

Examples:

1. The searcher was looking for a lost item in the sand.
2. The searcher was searching the library for a rare book.
3. The searcher was scouring the Internet for information on a topic.
4. The searcher was a detective, investigating a crime.
5. The searcher was a treasure hunter, seeking riches and adventure.