Answer:

missions

Answer	Crossword Clue
MISSIONS	Some are impossible
MISSIONS	Video game tasks
MISSIONS	Religious enterprises

MISSIONS	Important church work.
MISSIONS	Alamo and others.
MISSIONS	Assignments
MISSIONS	Embassies
MISSIONS	Mercury had 26 of them
MISSIONS	San Juan Capistrano et al.

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.