What's the difference between and
What's the difference between and

surefooted vs confident
jag vs dag
disarrangement vs disorganization
United States Intelligence Community vs Intelligence Community
shaping vs formation
drop vs dribble
inundation vs flood
checkout vs checkout counter
security measures vs security
inlet vs recess
sporting vs clean
buy at vs patronize
PMS vs premenstrual syndrome
voluminous vs copious
cartoon strip vs comic strip
cleft vs dissected
underwrite vs subvention
beat vs flap
good luck vs good fortune
normalise vs normalize
revolutionise vs revolutionize
roadblock vs barrier
bet vs count
vertical stabilizer vs vertical stabiliser
honorably vs uprightly
never vs ne'er
electron tube vs tube
capricious vs freakish
corruption vs corruptness
pro vs professional
ACC vs Air Combat Command
rose-cheeked vs flushed
substitute vs replace
air vs tune
jongleur vs folk singer