Is 'règle' feminine or masculine in French?

Règle is a feminine, not a masculine, Word in French. The feminine singular noun, which translates as "rule" or "(the instrument) ruler" in English, may be preceded immediately by the feminine singular la since French employs definite articles where English does and does not use "the." The pronunciation will be "(la) reg" in Alsatian French and "(la) reh-gluh" in Provençal French.