try hitting 'word omission online exercises' in Google.com, and go for tutor vista, their exercises are quite good.
a contraction
The like word is eupnea (good respiratory condition).(Another possibility is the omission of several letters of the word European.)
Elision
Although some would argue otherwise, a lie by omission is still a lie.
omission of the letters from the beginning of the word
The teacher makes many omissions to the paper.Omissions is a word.
Apocope
The word o'er is an apostrophe of omission. It left out the v in over.
The dots are called ellipses. They indicate an omission of a word or phrase.
It tells the reader that there is an indication of omission of word(s).
another word for chasm that begins with o omission opening oversight
An apocope is the loss or omission of a sound or syllable at the end of a word.