Tuckpointing
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Tuckpointing is when masonry is pointed with a flush mortar joint that approximates the color of the masonry units and a mortar of contrasting color that is shaped into a thin strip.
It is different from "pointing" (to place plastic mortar into joints to correct defects or to completely fill joints in newly laid masonry) and "repointing" (to place plastic mortar into cut or raked joints to correct defective mortar joints in masonry).[1] The terms are often used interchangeably.