The phrase "nerve oneself" can be interpreted in several ways. It may mean to psyche oneself up or gather the courage needed to take on a challenging situation. Synonyms for this phrase may include "steel oneself", "brace oneself", "psych oneself up", "prepare oneself", or "gear oneself up". Additionally, if "nerve oneself" refers to calming oneself down or relaxing, synonyms may include "compose oneself", "relax oneself", "center oneself", "ground oneself", or "calm oneself". Depending on the context of the use of the phrase "nerve oneself", different synonyms may be appropriate and convey different shades of meaning.