· backboard
· backcourt
· backdated
· backfield
· backswing
· backtrack
· backwater
· bacterial
· balancing
· ballerina
· ballistic
· ballpoint
· bandstand
· bandwagon
· bandwidth
· baptismal
· barbarian
· barbarous
· barefaced
Racer, radar, rarer, rater, razor, rebar, recur, refer, rider, rigor, riper, river, roper, rotor, rover, rower, ruder, ruler and rumor are 5 letter words. They begin and end with the letter r.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern R--AB. That is, five letter words with 1st letter R and 4th letter A and 5th letter B. In alphabetical order, they are:
rehab
actor arbor adder alder asker aster augur
Borrower
Blindage
Candid?
A nine letter word using those letters is boomerang.
instand
· flamingo · football · forecast · frighten · fabulous · faithful · familiar · fatherly · favorite · fearless · feminine · flagrant · flawless · flippant · forceful · freezing · frequent · fruitful
betaareacodacolacomadatadivagalahulajavalavanovapicapitapumasagatubazona
"Lucky" is a five letter word beginning with l
havoc
Jesu
widow
issue
resin rosin ricin
Lorry.
Five letter words starting with C and ending with X are calyx and codex.
Five letter word insect ending in ic
Creed. (Also, a five letter word for a set of beliefs beginning with "d" is dogma).
Some five letter words ending in AT are:bleatbloatcaratcheatcleatfloatgloatpleatsplatsquatsweattreatwheat
Four letter word beginning with Z and ending with T:Zest