Keep lines containing a word or phrase that you specify, or keep the lines that don’t have that word or phrase (click “Show Example”).
You can also ignore case, match only whole words, and sort results. Paste lines, select options, and press Submit. Results appear at the bottom of the page.
Starting with this list:
cat
dog
mat
a big chubby hog
If you keep lines with “at” in them, you will be left with
cat
mat
If you remove lines with “at” in them, you will be left with
dog
a big chubby hog
“Did Christ love you without any motive to draw His love, then will you not love Christ, in whom there are so many motives to draw your love?”
–Thomas Vincent, The True Christian's Love to the Unseen Christ