Sindarin 

sîdh

peace

sîdh (i hîdh), no distinct pl. form except with article (i sîdh) if there is any pl. form. 1) aeg (point, thorn). No distinct pl. form. (but aeglir can be used for a range of mountain peaks). Note: aeg is also used as adj. "sharp, pointed, piercing". 2) mîn (i vîn), no distinct pl. form except with article (i mîn), coll. pl. míniath. Note: homophones include the numeral ”one” and the adjective ”isolated, first, towering”. 3) egnas (sharp point; literally "thorn-point"), pl. egnais, coll. pl. egnassath.