1. ail - Noun
2. ail - Adjective
3. ail - Verb
To affect with pain or uneasiness, either physical or mental; to trouble; to be the matter with; -- used to express some uneasiness or affection, whose cause is unknown; as, what ails the man? I know not what ails him.
To be affected with pain or uneasiness of any sort; to be ill or indisposed or in trouble.
Indisposition or morbid affection.
Source: Webster's dictionaryO, what can ail thee, knight-at-arms, Alone and palely loitering? The sedge has wither'd from the lake, And no birds sing. John Keats
I believe that what so saddens the reformer is not his sympathy with his fellows in distress, but, though he be the holiest son of God, is his private ail. Let this be righted, let the spring come to him, the morning rise over his couch, and he will forsake his generous companions without apology. Henry David Thoreau
Eating disorders, body dysmorphia and a general dissatisfaction with one's life and body seems to ail too many young people. Carre Otis
My life, my joy, my food, my ail the world! William Shakespeare
A skabbed sheep syles ail the flock. Scottish Proverb
ELINT-gathering systems, called the Electro Magnetic Reconnaissance System (EMR), built by AIL could be carried in the chine bays to analyse electronic signal fields being passed through, and were pre-programmed to identify items of interest. Source: Internet