get across

1.  Also, get it across. Make understandable or clear, as in I tried to get my point across, or He'll have to get it across to the others. [Late 1800s]
2.  Also, come across. Be convincing, impress on others, as in How can I get across to the students? or The headmaster's announcement comes across as a criticism of the faculty. [c. 1920] Also see put across.

Definition: communicate an idea
Antonyms: miscommunicate

The verb has 3 meanings:

Meaning #1: communicate successfully
  Synonym: put over

Meaning #2: become clear or enter one's consciousness or emotions
  Synonyms: click, get through, dawn, come home, sink in, penetrate, fall into place

Meaning #3: travel across or pass over
  Synonyms: traverse, track, cover, cross, pass over, get over, cut through, cut across