صيغه ṣīg̠ẖa A (from صوغ) s. m. 1. A mould (for casting metal). 2. A word declinable and de- rivative. 3. The mood, tense, or voice of a verb, conjugation, derivation. 4. Trade, pro- fession. 5. A form of words used in marriage ceremonies. (Plur. صيغ).