Pronunciation: me-ta'-the-sis
Alternate Spelling: transposicio
The transposition of letters within a word. A kind of metaplasm (and sometimes a kind of paronomasia.)
Several transpositions of letters in the first two words make possible the last two words of this humorous statement: "Elvis Lives in Evil Levis." American spelling is often simply metathesis applied to the original British spelling: "theatre" becomes "theater" "centre" becomes "center"