n.1 artist’s thin board or slab for laying and mixing colours on. 2 range of colours used by an artist. [French from Latin pala spade] paletteknife n. 1 thin flexible steel blade with a handle for mixing colours or applying or removing paint. 2 blunt roundended flexible kitchen knife. palimony tplimoni/ n. esp. US colloq. allowance paid by either partner of a separated unmarried couple to the other. [from PAL, ALIMONY]