keep in one's mind; "I cannot retain so much information"
secure and keep for possible future use or application; "The landlord retained the security deposit"; "I reserve the right to disagree"
allow to remain in a place or position; "We cannot continue several servants any longer"; "She retains a lawyer"; "The family's fortune waned and they could not keep their household staff"; "Our grant has run out and we cannot keep you on"; "We kept the work going as long as we could"
hold within; "This soil retains water"; "I retain this drug for a long time"
make (alcohol) unfit for drinking without impairing usefulness for other purposes
modify (as a native protein) especially by heat, acid, alkali, or ultraviolet radiation so that all of the original properties are removed or diminished
add nonfissionable material to (fissionable material) so as to make unsuitable for use in an atomic bomb
fill with sublime emotion; tickle pink; "The children were thrilled at the prospect of going to the movies"; "He was inebriated by his phenomenal success"
have offspring or young; "The deer in our neighborhood reproduce madly"; "The Catholic Church tells people to procreate, no matter what their economic situation may be"
make a copy or equivalent of; "reproduce the painting"
recreate an idea, mood, atmosphere, etc. as by artistic means; "He reproduced the feeling of sadness in the portrait"