The phrase "apply tension" can be substituted with several synonyms such as "exert pressure," "tighten," "strain," "tense," or "stretch." These terms convey the act of creating resistance or stress on an object or body. When applying tension, a force or effort is required, whether it be physical, emotional, or mental. Such tension can be positive, as in challenging oneself to grow and improve, or negative, as in experiencing stress or anxiety. Understanding and utilizing different synonyms for "apply tension" can enhance the clarity and precision of communication while also broadening one's vocabulary.