abutment
advocate
affirm
afford support
alpenstock
arc-boutant
arm
athletic supporter
attest
authenticate
back
back up
backbone
backing
bandeau
bank
beam
bear
bear out
bear up
bearer
beef up
bolster
bolster up
bra
brace
brace up
bracer
bracket
brassiere
breakwater
bulwark
buoy up
buttress pier
buttressing
cane
carrier
carry
case harden
certify
cervix
circumstantiate
column
confirm
corroborate
corset
counterfort
counterpart
fortify
reinforce
reënforce
strengthen
buttressed
buttresses
arcade
balcony
balustrade
bastion
battlements
belfry
causeway
cornice
crag
masonry
minaret
monolith
palisade
parapet
pier
pillar
pinnacle
promontory
pyramid
rampart
spire
steeple
stonework
turret