IPA: /kənˈsiːlər/
KK: /kənˈsilər/
A type of makeup that is used to hide imperfections on the skin, such as blemishes or dark circles under the eyes.
She applied concealer to cover the dark circles under her eyes before going out.
Concealer → It is formed from "con-" (meaning together) and "celare" (meaning to hide). The word "concealer" refers to a product that hides imperfections on the skin, bringing things together to create a more uniform appearance.
Think of something that 'hides' ('celare') imperfections 'together' ('con-') — that's why a concealer is used to cover up flaws.