When someone shows appreciation for someone else, it means they express their gratitude and acknowledge their efforts. There are various ways to show appreciation, and using synonyms can help to add depth and variety to your expression of gratitude. Some synonyms for "showed appreciation" include thanked, commended, acclaimed, praised, and admired. These words essentially convey the same message but with different tones and intensities. For instance, "commended" carries a stronger emphasis on the recognition of a person's achievements, while "admirable" denotes more of an admiration of a person's character. Using different synonyms for "showed appreciation" can help to elevate the message and highlight the importance of expressing gratitude to others.