täiustasin

The Estonian word "täiustasin" is the first-person singular past tense form of the verb "täiustama." This verb translates to "to perfect," "to improve," "to refine," or "to enhance" in English. Therefore, "täiustasin" means "I perfected," "I improved," "I refined," or "I enhanced."

The verb "täiustama" implies a process of making something better, more complete, or closer to an ideal state. It suggests a deliberate action taken to elevate the quality, functionality, or appearance of an object, skill, or concept. The addition of the "-sin" suffix indicates that the action was performed by the speaker in the past.

Examples of its use might include "Ma täiustasin oma oskusi" (I improved my skills) or "Ta täiustasin oma tööd" (He/She perfected his/her work). The specific nuance of the English translation depends heavily on the context in which "täiustasin" is used. It is a versatile verb used in various contexts, from personal development to technical advancements.