: to form an opinion or give an answer about something when you do not know much or anything about it
: to guess (something) correctly : to make a correct conclusion about (someone or something) by chance
: to suppose or think (something)
: an attempt to give an opinion or answer about something when you do not know much about it or are not sure about it
What made you want to look up guess? Please tell us where you read or heard it (including the quote, if possible).