De-commissioning is a process of decomposing or retiring something that is no longer useful or functional. It is essential to find synonyms for de-commission, especially in technical documents and reports, to avoid repetitive usage. Some synonyms for the word de-commission include retire, decompose, dismantle, discontinue, abandon, withdraw, eliminate, terminate, and put out of action. The word retire implies the withdrawal of something from service or use permanently. On the other hand, dismantle means to take apart piece by piece. Discontinue indicates discontinuation or cessation of something that was previously operational. Therefore, the use of synonyms can enhance the quality of written communication, improving clarity and professional tone.