The term "let up" is often used to express the idea of easing off or slowing down. Some synonyms for this phrase include: ease up, slacken, lessen, subside, abate, diminish, relax, lighten up, and loosen up. These words convey a sense of decreasing intensity, pressure or activity. For instance, "the rain began to let up" can be replaced with "the rain started to ease up." Similarly, "the boss asked the employees to let up on their workload" can be written as "the manager requested that the staff slacken their workload." Knowing synonyms for let up can help enrich one's vocabulary and make writing more varied.