natural parent (noun) biological parent: birth mother or father
Sinonime: asphyxiate,
bar,
check, clog,
close, congest, constrict, dam,
die,
drown,
fill, gag, garrote,
gasp, gibbet,
kill, noose,
obstruct, occlude,
overpower,
retard,
squeeze, stifle,
stop, stopper, strangle, strangulate,
stuff, stunt,
suffocate, suppress, throttle, wring
Antonime: release, unblock, unconstrict