1. on the wing - Adverb
2. on the wing - Phrase
flying through the air
Source: WordNetPippa's Song The year's at the spring The day's at the morn Morning's at seven, The Hill side's dew-pearled The lark's on the wing The snail's on the thorn God's in his heaven- All's right with the world. Robert Browning
A book is like a man clever and dull, brave and cowardly, beautiful and ugly. For every flowering thought there will be a page like a wet and mangy mongrel, and for every looping flight a tap on the wing and a reminder that wax cannot hold the feathers firm too near the sun. John Steinbeck
I have felt the wind on the wing of madness. Charles Baudelaire
Come, fill the Cup, and in the fire of Spring Your Winter-garment of Repentance fling: The Bird of Time has but a little way To flutter - and the Bird is on the Wing. Omar Khayyám
A sparrow in the hand is better than a bustard on the wing. Spanish Proverb
A sparrow in the hand is better than a crane on the wing. French Proverb