She focuses on painting and writing during her retirement.

retirement 是名词，由动词 retire（退休）加上名词后缀 -ment 构成，表示"退休的状态或时期"。retire 本身由前缀 re-（表示"回、向后"）和 tire（古法语词，意为"撤回"）组成，字面意思是"撤回、退下"。