رَجَاءٌ

[according to most a verbal noun, (see 1, in two senses,) but according to the Msb a simple subst.,] Hope; synonym أَمَلٌ; (S and M and K in art امل;) opposite of يَأْسٌ; (K;) an opinion requiring the happening of an event in which will be a cause of happiness; (Er-Rághib, TA;) expectation of deriving advantage from an event of which a cause has already occurred: (El-Harállee, TA:) or, as Ibn-El-Kemál says, properly, i. q. أَمَلٌ: and conventionally, the clinging of the heart to the happening of a future loved event: (TA:) or hope, or eager desire, for a thing that may possibly happen; differing from تَمَنٍّ, which relates to what is possible and to what is impossible. (MF, TA.)