Maybe (adverb)
Modifies a verb, indicating a lack of certainty.
Maybe (adverb)
(as a pro-sentence) Perhaps that is true expressing no commitment to a decision or a neutral viewpoint to a statement.
Maybe (adjective)
Possible; uncertain.
“Then add those may-be years thou hast to live ― Dryden.”
Maybe (noun)
Something that is possibly true.
Maybe (noun)
An answer that shows neither agreement nor disagreement.
“The results of the poll were inconclusive. We got two yeses, three nos, and four maybes.”
Maybe (noun)
A future event that may or may not happen.
“About your raise: it’s a big maybe.”
Perhaps (adverb)
Modifies a verb, indicating a lack of certainty.
“Perhaps John will come over for dinner.”
Perhaps (adverb)
By chance.
Perhaps (noun)
An uncertainty.
Maybe (adverb)
perhaps; possibly
“maybe I won’t go back”
“he was standing maybe 20 or 30 feet away”
Maybe (noun)
a mere possibility or probability
“no ifs, buts, or maybes”
Perhaps (adverb)
used to express uncertainty or possibility
“perhaps I should have been frank with him”
Perhaps (adverb)
used when one does not wish to be too definite or assertive in the expression of an opinion
“perhaps not surprisingly, he was cautious about committing himself”
Perhaps (adverb)
used when making a polite request, offer, or suggestion
“would you perhaps consent to act as our guide?”