1) Ale descriptor 2) Audible inhalation 3) Check for a gas leak 4) Check for odors 5) Cold sound 6) Detect a scent 7) Draw up air through the nose 8) Emulate a bloodhound 9) Emulate bloodhounds 10) Enjoy the fragrance 11) Express disdain nasally 12) Faint odor 13) Get a noseful of 14) Get a whiff 15) Haughty reaction 1) Inhale 2) Moan 3) Smell 4) Sob 
• (n.) The act of sniffing; perception by sniffing; that which is taken by sniffing; as, a sniff of air. • (v. t.) To draw air audibly up the nose; to snuff; -- sometimes done as a gesture of suspicion, offense, or contempt. • (v. t.) To draw in with the breath through the nose; as, to sniff the air of the country. • (v. t.) To ...
Sniff intransitive verb [ imperfect & past participle Sniffed or Snift ; present participle & verbal noun Sniffing .] [ Middle English sneven ; akin to snivel , snuff ; confer Danish snive to sniff. S...Sniff transitive verb 1. To draw in with the breath through the nose; as, to sniff the air of the country. 2. To perceive as by sniffing; to snuff, to scent; to smell; as, to sniff danger. Sniff noun The act of sniffing; perception by sniffing; that which is taken by sniffing; as, a sniff of air. 
Sniff is slang for cocaine.
[n] - sensing an odor by inhaling through the nose 2. [v] - perceive by inhaling through the nose 3. [v] - inhale audibly through the nose
snuff noun sensing an odor by inhaling through the nose