Artificial intelligent assistant

百年 - ヒャクネン or モモトセ When is read as vs ? Likewise, when is read as vs ?

These days only and are used.

In premodern Japanese it was basically acceptable to read any word with either kun'yomi or on'yomi, including people's names. For this reason you might see in poetry or possibly as a brand name, but they would have to put furigana on it to make the pronunciation obvious. Google indicates that is occasionally used as a place name or personal name.

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