| Term | Definition |
| dissonance | a combination of music notes that do not sound pleasant together |
| clash | (sth) (together) to hit together and make a loud ringing noise; to make two metal objects do this |
| dissension | disagreement between people or within a group; dissension within the government |
| friction | (between A and B) disagreement or lack of friendship among people who have different opinions about sth |
| tension | (between A and B) a situation in which people do not trust each other, or feel unfriendly towards each other, and which may cause them to attack each other; |
| contention | angry disagreement between people; one area of _ is the availability of nursery care; |
| strife | (u) (formal or literacy) angry or violent disagreement between two people or groups of people; |
| discord | (u) (formal) disagreement; arguing; martial/family discord. (root: cor/cord: heart) |
| dissident | a person who strongly disagrees with and criticizes their government, esp in a country where this kind of action is dangerous |
| disabuse | set right and free from error |