brú2, f. 1. Lit: (In phrase) Ar bhrú, on the brink (of). Ar bhrú abhann, on the bank of a river. Ar bhrú éaga, on the verge of death. 2 = broinn.
brú3, m. (gs. as s. ~, as vn. ~ite; pl. ~nna). 1. vn. of brúigh. 2. Press, crush. ~ daoine, crush of people. ~ croí, sorrow of heart. ~ carnáin, jostling game. Inneall ~ite, crushing machine. Tabhair ~ maith dóibh, (of persons) give them a good shove; (of things) pound them well. ~ fút, restraint; suppression, concealment. 3. Pressure. ~ aeir, air pressure; atmospheric pressure. ~ fola, blood pressure. 4. Bruise. 5. Dent.