a tear
Examples
The accusing spirit, which flew up to heaven's chancery with the oath, blushed as he gave it in and the recording angel as he wrote it down dropped a tear upon the word and blotted it out forever.
Life! we've been long together Through pleasant and through cloudy weather; Tis hard to part when friends are dear,- Perhaps 'twill cost a sigh, a tear. Then steal away, give little warning. Choose thine own time, Say not "Good-night," but in some brighter clime, Bid me "Good-morning."
Eyes open wide, looking at the heavens with a tear in my eye.
A tear at the right moment is better than a misplaced smile.
A tear in the eye is a wound in the heart.
Better an ache than a tear.