1. the figure of the moon as it appears in its first or last quarter, with concave and convex edges terminating in points.
2. something shaped like a crescent, especially: a) a curved pastry. b) a curved street, often presenting a continuous façade, as of row houses.
3. a trademark for an adjustable open-end wrench.
5. waxing, as the moon; increasing.
Etymology: from Latin crescēns, “increasing”, from crescere, “to grow”.