The phrase "in tern" is a commonly used term in various contexts, including business, education, and science. It refers to a temporary worker or employee who is hired for a specific period or project. Some synonyms for the phrase "in tern" include trainee, apprentice, intern, beginner, newcomer, and neophyte. These words are often used interchangeably, but they may differ slightly in meaning and connotation. Trainee and apprentice, for example, suggest a more structured and formal learning environment, while intern and newcomer may be more informal and on-the-job learning experiences. Regardless, all these synonyms emphasize the temporary and learning aspect of the position.