The phrase "put in commission" refers to the process of making something operational or active. There are several synonyms for this phrase that can be used interchangeably depending on the context. These include "commissioned," "activated," "initiated," "launched," and "started." Commissioned refers to the process of giving an official order or authorization for something to be put into operation. Activated pertains to the process of making something immediately available for use. Initiated means to start a process or action. Launched is used when emphasizing the start of something new or monumental. Started simply suggests the beginning of a process or action. All of these synonyms can be used to describe the process of putting something in commission.