back 4 Associations

backward forward (antonym) ahead (antonym)

backward 8 Associations

back forward (antonym) ahead (antonym)

foot 4 Associations

bottom (generic term) head (antonym)

rear 4 Associations

formation (generic term) head (antonym)

surface 7 Associations

aboveground (similar term) grade-constructed (similar term) opencast (similar term) opencut (similar term) subsurface (antonym) overhead (antonym)

tail 4 Associations

reverse (generic term) verso (generic term) head (antonym)