Is the french word for heart masculine or feminine?
The french word for heart is masculine. un coeur.
There is no word in French for the neuter pronoun "it" because French grammar knows only masculine and feminine gender. Use the masculine or feminine pronoun, il or elle, respectively, depending upon the gender of the antecedent. Where the gender of the antecedent is not specified, use the masculine form il. Neither. Only the nouns - and their related adjectives - are masculine and feminine in French.