mark off

Verb

mark off (third-person singular simple present marks off, present participle marking off, simple past and past participle marked off)

1. (transitive) To separate by or as with a boundary line.
   • Measure the gap, mark it off with a pencil, and cut the wood to size.
   • The Latin form, templum, from which the English temple is derived, originally signified an uncovered area marked off by boundaries; especially the place marked off by the augurs to be excepted from all profane uses."1913, Catholic Encyclopedia^(http://en.wikisource.org/wiki/Catholic_Encyclopedia_(1913)/Temple)

   Synonyms:

   delineate

2. (transitive) To indicate as dealt with, as on a list.

   Synonyms:

   check off