There are plenty of words that end with "tion", but none that start with K unfortunately!
11 letter words that begin and end with the same letter:charismaticdisappeareddiscrediteddistributedgalvanizinggerminatingseriousnesstranslucenttransparent
Abnormal, approval and atypical are 8 letter words. They begin with the letter a and end with the letter l.
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.
Mob and minicab are words that begin with the letter m and end with b.
Unscrew and undertow begin with the letter u. They end with letter w.
Elation
station, edition, caution, portion
11 letter words that begin and end with the same letter:charismaticdisappeareddiscrediteddistributedgalvanizinggerminatingseriousnesstranslucenttransparent
Some words that begin with the letter T and end with the letter K are:tacktalkteakthickticktooktracktrektricktrucktrunktuck
Some four-letter words that begin with "a" and end with "t" are "chat," "that," and "swat."
Abnormal, approval and atypical are 8 letter words. They begin with the letter a and end with the letter l.
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.
Mob and minicab are words that begin with the letter m and end with b.
nouns
nouns
KATION (an alternate spelling for CATION, a molecule with one more proton than electron)
Unscrew and undertow begin with the letter u. They end with letter w.