(v): cause to die; put to death, usually intentionally or knowingly
(v): impair the respiration of or obstruct the air passage of
(v): block passage through
(v): become stultified, suppressed, or stifled
(v): undergo a change or development
(v): suppress the development, creativity, or imagination of
(v): smother or suppress
(v): be asphyxiated; die from lack of oxygen
(v): pass from physical life and lose all bodily attributes and functions necessary to sustain life
(v): feel uncomfortable for lack of fresh air
(v): be conscious of a physical, mental, or emotional state
(v): struggle for breath; have insufficient oxygen intake
(v): feel pain or be in pain