intransitive. To draw air through the nose with short or sharp audible inhalations; to clear the nose in this way, esp. when under the influence…

intransitive. To sniff, snivel, snuffle.

intransitive. To snuffle.

To draw air, etc., into the nostrils by an effort of inhalation; to do this in order to smell something. Also const. after, at.

To draw up air or mucus through the nostrils in an audible or noisy manner.

intransitive. To sniff, snuff.

To inhale, sniff; also intransitive to smell, sniff.

intransitive. To sniff or snivel; to snort.

intransitive. To sniff, in various senses.

intransitive. To breathe heavily; to snuffle, snore, or snort.

Const. up one's nose.

intransitive. To snivel or snuffle slightly; to sniff. Also (with that and complement), to say with a sniffle.

intransitive. To snuffle; to breathe or speak through the nose, etc.