The phrase "thrust in" can be replaced with several synonyms, each with a slightly different connotation. To forcefully insert something, one could say "plunge in" or "shove in." To emphasize the speed of insertion, "jab in" or "ram in" could be used. "Immerse in" suggests a more gradual or deliberate insertion, while "embed in" implies a more permanent or deep-seated position. Other synonyms include "penetrate," "pierce," "insert," "introduce," and "infuse." Ultimately, the choice of synonym will depend on the context and desired tone of the writing or speech.