Any of 43 species of squirrels, most from the tribe Pteromyini within the family Sciuridae, others from family Anomaluridae, which glide from tree to tree.

(informal) An itinerant bishop of the Church of England appointed to administer within another's diocese to those who refuse to accept the ordination of women.

(American spelling, idiomatic) Extremely well; in an exceptional, noteworthy, or extraordinary manner.

Used other than figuratively or idiomatically: see flying, fish.

(slang) An aircraft with an unacceptably high accident rate.

A colugo, having membranes between the front and hind legs similar to those of flying squirrels.

vicious

Any early guided missile, but especially the V-1.

(architecture) A buttress that stands apart from the structure that it supports, and is connected to it by an arch (flyer).

(rail transport) The carefully-timed situation in which two opposing trains on a nominally single-track line meet at a siding and are able to pass each other without stopping, because they have reached the siding simultaneously.