rainbow

(noun, adjective, verb)

adjective

1. Multicoloured.

2. (attributive, chiefly US) Made up of several races or ethnicities, or (more broadly) of several cultural or ideological factions.

3. (poker, chiefly of a flop) Composed entirely of different suits.

noun

1. an arc of colored light in the sky caused by refraction of the sun's rays by rain

Definition categories: object, arc, bow

2. an illusory hope

- chasing rainbows

Definition categories: thought, hope, promise

Sentences with rainbow as a noun:

- a rainbow of possibilities

- Many electoral promises are rainbows, vanishing soon after poll day.

verb

1. (transitive) To pattern with many colours, like a rainbow.