When it comes to finding synonyms for the phrase "puts on rack," the possibilities are vast. Some of the most common phrases used are "tortures," "interrogates," "grills," "pressures," and "subjects to questioning." Other phrases that could be used to refer to the same idea include "puts under the spotlight," "puts to the test," "puts on the hot seat," and "puts through the wringer." Each of these phrases conveys a sense of intense scrutiny and investigation, which is often associated with the phrase "puts on rack." By using synonyms, writers can add variety to their writing and convey their ideas in a more nuanced way.