The lipcurl or horse laugh (flehmen in German) may occur in response to the smell of strange manure or to a variety of other odors.

In further support of the category definitions, a comparison of subjects' very close and nonclose friendships revealed that the nonclose friendships were, by and large, categorized as Focused and Segmented friendships, whereas very close friendships were predominantly of the Complex type.

A ship sailing under the flag and pass of an enemy.

to accept the report of a committee