Definition of "thin" []

• Relatively small in extent from one surface to the opposite, usually in the smallest solid dimension: a thin book. (adjective)
• Not great in diameter or cross section; fine: thin wire. (adjective)
• Lean or slender in form, build, or stature. (adjective)
• Not dense or concentrated; sparse: the thin vegetation of the plateau. (adjective)
• More rarefied than normal: thin air. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "To stay with someone or something “through thick and thin” is to persevere through good times as well as bad: “She stood beside her friend through thick and thin."
• "I disagree with the term thin privilege see the posts I linked to for a fuller argument of why, but I really disagree with using it in this case."
• "If the sunlight is intense and the label thin, some starch will appear under it."