I tried to search for the word "foot" and all related in a dictionary... I haven't studied russian yet, but I'm going to, I think... And I dare not ask these from a teacher.
From the word "foot", I got these:
низ (niz) m, нога, нога f, подножие, подножие (podnóžije) n, стопа f, ступня, ступня...