Perhaps is an adverb used to express uncertainty or possibility.
Common usages of perhaps include:
1. Expressing uncertainty: "Perhaps we should wait a bit longer."
2. Making polite suggestions: "Perhaps you'd like to try this dish?"
3. Indicating possibility: "Perhaps it will rain tomorrow."
4. Softening statements: "That's perhaps not the best idea."
Synonyms: maybe, possibly, conceivably, perchance (literary)