One such word is absorb.
Some words that begin with the letter T and end with the letter K are:tacktalkteakthickticktooktracktrektricktrucktrunktuck
11 letter words that begin and end with the same letter:charismaticdisappeareddiscrediteddistributedgalvanizinggerminatingseriousnesstranslucenttransparent
Abut and aunt are 4 letter words. They begin with a and end with the letter t.
Mob and minicab are words that begin with the letter m and end with b.
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Several four letter words begin with the letter q. However, there are no four letter words that begin with the letter q and end with the letter o.
kachinakoalaKunaSome words that start with k and end with a:kahunakanakarmakashakavakielbasakleptomaniakoalakwachakwanza
oka
aqua
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