There are several synonyms for the phrase "going up." Some of the common ones include ascending, climbing, rising, and increasing. Ascending is typically used when referring to going up a steep incline or staircase. Climbing is often used in outdoor activities such as rock climbing or hiking. Rising is usually used when referring to something that is physically rising, such as the sun or tide. Increasing is mostly used when referring to a numerical increase, such as stock prices or temperature. Other synonyms for "going up" include escalating, mounting, and soaring. All of these words convey the idea of vertical movement, whether physical or metaphorical.