1) Alter 2) Cause dissension 3) Change 4) Divide into two camps 5) Divide sharply 6) Modify 7) Polarise 1) Polarise 
• (v. t.) To communicate polarity to.
to induce electric polarization in a body
Po'lar·ize transitive verb [ imperfect & past participle Polarized ; present participle & verbal noun Polarizing .] [ Confer French polariser .] To communicate polarity to. 
Type: Term Pronunciation: pō′lăr-īz Definitions: 1. To put into a state of polarization.
[v] - cause to vibrate in a definite pattern 2. [v] - cause to concentrate about two conflicting or contrasting positions 3. [v] - become polarized in a conflict or contrasting situation
[SAT terms] become divided in a conflict or contrasting situation become divided in a conflict or contrasting situation