The meaning of UP...!

[system]

BAIL - BALE
BEAR - BARE
BEET - BEAT

[system]

SENT- SCENT
POUR-PAW

[system]

DO - DEW
PALE - PAIL
RAIN - REIGN

[system]

SAW- SORE
TALE- TAIL
TOUR- TOR
SO-SEW

[system]

DIE - DYE
TAUGHT - TAUT
SAIL - SALE

[system]

BE- BEE
YOU- EWE

[system]

GRATE - GREAT
HAIL - HALE
WHOLE -HOLE
FAIR - FARE