carat / caret / carrot / karat [ˈkɛrət]
carat – n. – a unit of weight for precious stones = 200mg.
caret – n. – a mark (^) indicating a proposed insertion in printing or writing
carrot – n. – 1. an umbelliferous plant, Daucus carfota, with an orange coloured tap root; 2. a means of enticement or persuasion
karat – n. – (also carat) a measure of purity of gold, pure gold being 24 carats