| treater | (n) ผู้รักษา |
| treater | |
| streater | |
| treaters |
| Entreater | n. One who entreats; one who asks earnestly; a beseecher. [ 1913 Webster ] |
| Treater | n. One who treats; one who handles, or discourses on, a subject; also, one who entertains. [ 1913 Webster ] |
| abuser | (n) someone who abuses, Syn. maltreater |
| negotiator | (n) someone who negotiates (confers with others in order to reach a settlement), Syn. negotiant, treater |