2. The center / centre group

2. The center / centre group

Most GB words ending in -tre, usually deriving from French, end in -ter in the US. This difference is also apparent in derivatives. To see the full text, click here. 

AE	BE
accoutre, accouter	accoutre
accouterment, accoutrement	accoutrement
amphitheater	amphitheatre
caliber, calibre	calibre
center	centre
centerfold	centrefold
fiber, fibre	fibre
fiberboard, fibreboard	fibreboard
fiberglass, fibreglass	fibreglass
goiter	goitre
liter	litre
luster	lustre
maneuver	manoeuvre
meager, meagre	meagre
meter	metre
miter, mitre	mitre
niter	nitre
ocher, ochre	ochre
philter, philtre	philtre
reconnoiter, reconnoitre	reconnoitre
saber, sabre	sabre
saltpeter	saltpetre
scepter	sceptre
somber, sombre	somber
specter, spectre	spectre
theater, theatre	theatre