Umbel and Umbrella

Umbel noun - Flat-topped or rounded inflorescence characteristic of the family Umbelliferae in which the individual flower stalks arise from about the same point; youngest flowers are at the center.

Umbrella and umbel are semantically related. In some cases you can use "Umbrella" instead a noun "Umbel".

Umbrella noun - A lightweight handheld collapsible canopy.

Umbel and umbrella are semantically related. You can use "Umbel" instead a noun "Umbrella".