Crosswordiee.com

% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Arroyo's relative 6 letters:

RAVINE: Arroyo's relative
WADI: Arroyo's relative.
WADIS: Relatives of arroyos
RIO: Relative of an arroyo.