por

1 : for, during <se quedaron allí por la semana : they stayed there during the week> <por el momento : for now, at the moment>
2 : around, during <por noviembre empieza a nevar : around November it starts to snow> <por la mañana : in the morning>
3 : around (a place) <debe estar por allí : it must be over there> <por todas partes : everywhere>
4 : by, through, along <por la puerta : through the door> <pasé por tu casa : I stopped by your house> <por la costa : along the coast>
5 : for, for the sake of <lo hizo por su madre : he did it for his mother> <¡por Dios! : for heaven's sake!>
6 : because of, on account of <llegué tarde por el tráfico : I arrived late because of the traffic> <dejar por imposible : to give up as impossible>
7 : per <60 millas por hora : 60 miles per hour> <por docena : by the dozen>
8 : for, in exchange for, instead of <su hermana habló por él : his sister spoke on his behalf>
9 : by means of <hablar por teléfono : to talk on the phone> <por escrito : in writing>
10 : as for <por mí : as far as I'm concerned>
11 : times <tres por dos son seis : three times two is six>
12 según : from, according to <por lo que dices : judging from what you're telling me>
13 : as, for <por ejemplo : for example>
14 : by <hecho por mi abuela : made by my grandmother> <por correo : by mail>
15 : for, in order to <lucha por ganar su respeto : he struggles to win her respect>
16 estar por : to be about to
17 por ciento : percent
18 por favor : please
19 por lo tanto : therefore, consequently
20 ¿por qué? : why?
21 por que → porque
22 por…que : no matter how <por mucho que intente : no matter how hard I try>
23 por si or por si acaso : just in case