(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
we went to the cinema but he didn'tnosotros fuimos al cine pero él no;it is he who ...es él quien ...;you've got more money than he hastienes más dinero que él
Don't translate the subject pronoun when not emphasizing or clarifying:
he's very talles muy alto;there he isallí está
2
he who wishes to ...el que desee ...;quien desee ...
noun
it's a he(animal)es macho;(baby)es un niño;es varón; (LAm)