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"shine" is also used as a crossword clue. If that's what you saw, the answer is often lustre (6 letters).
Definitions
make (a surface) shine
Word origin
From Middle English shinen, schinen (preterite schon, past participle schinen), from Old English sċīnan (“to shine, flash; be resplendent”; preterite sċān, past participle sċinen), from Proto-West Germanic *skīnan (“to shine”), from Proto-Germanic *skīnaną (“to shine”).
Used in a sentence
“‘No. I only opened the door a foot and put my head in. The street lamps shine into that room. I could see him. He was all right. Sleeping like a great grampus. Poor, poor chap.’”
“My nephew tried other sports before deciding on football, which he shone at right away, quickly becoming the star of his school team.”
““[…] I was grateful to you for giving him a year’s schooling—where he shined at it—and for putting him as a clerk in your counting-house, where he shined still more.””
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Give off light”5 letters
02“Gleam”5 letters
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