Real Dictionary

glare
countable noun: A glare is an angry, hard, and unfriendly look.
verb: If the sun or a light glares, it shines with a very bright light which is difficult to look at.
verb: If you glare at someone, you look at them with an angry expression on your face.

glare in American English 1
a strong, steady, dazzling light or brilliant reflection, as from sunlight
to send forth or express with a glare
to shine with a strong, steady, dazzling light
intransitive verb: to shine with or reflect a very harsh, bright, dazzling light
noun: a very harsh, bright, dazzling light
transitive verb: to express with a glare

glare in American English 2
a smooth, bright, glassy surface, as of ice
smooth, bright, and glassy
noun: a bright, smooth surface, as of ice

glare in British English 1
noun: an angry stare
verb: to stare angrily; glower

glare in British English 2
adjective: smooth and glassy