To (inhale and) exhale; to breathe.
To take up oxygen and produce carbon dioxide through oxidation.
To breathe in and out successively.
To recover one's breath or breathe easily following stress.
To inhale in order to detect the scent of (something).
To detect the scent of; to discern by the sense of smell.
To have a suspicion of; to detect the possibility of (something).
To impart an odour to, to cause to have a particular smell.
To hunt animals by means of the sense of smell.
A smell left by an animal that may be used for tracing.
Any trail or trace that can be followed to find something or someone, such as the paper left behind in a paperchase.
A substance (usually liquid) created to provide a pleasant smell.
A distinctive smell.
The sense of smell.