encouraging a person to learn, discover, understand, or solve problems on his or her own, as by experimenting, evaluating possible answers or solutions, or by trial and error

a guide who gives information about antiquities and places of interest to sightseers

having or showing equanimity; even-tempered

of, characteristic of, or resembling a serpent, as in form or movement

of or relating to animals, usually worms or bivalves, that ingest earth or mud to extract the organic matter from it

plentiful; copious; abundant

to act together through a secret understanding, especially with evil or harmful intent

incisive or keen, as language or a person; caustic; cutting