Used attributively (before nouns) in set phrases such as "sniff test"; not normally gradable.
Definitionen
Relating to or intended for the act of sniffing; used only before a noun. The engineer performed a quick sniff test to check for gas leaks.
Onomatopoeic representation of the sound of sniffing, often conveying emotion or disdain.
Definitionen
Used to represent the action or sound of someone sniffing, often indicating emotion such as disdain, sorrow, or self-pity. "Sniff!" she said, wiping away a tear.