stifle

nouns

joint between the femur and tibia in a quadruped; corresponds to the human knee
knee, stifle

verbs

conceal or hide
"smother a yawn"; "muffle one's anger"; "strangle a yawn"
muffle, repress, smother, stifle, strangle
is derived from
stifler
is derived from
stifling
smother or suppress
"Stifle your curiosity"
dampen, stifle
is derived from
stifler
antonym
stimulate
impair the respiration of or obstruct the air passage of
"The foul air was slowly suffocating the children"
asphyxiate, choke, stifle, suffocate
be asphyxiated; die from lack of oxygen
"The child suffocated under the pillow"
asphyxiate, stifle, suffocate