Wei and Onasan express the same meaning, both of which are sister's meaning. The former is honorific, and Chinese characters are written on it.

2. Haha and Okasan both mean the mother in November. The former is a honorific, and Chinese characters are written on the mother.

Extended data

The Japanese have developed a complete system of honorific words, which are called honorific words in Japanese to show the speaker's respect for the interviewee.

2. Different degrees of languages are involved here, and skilled honorific users have a wide range of words and expressions to choose from in order to achieve the ideal level of politeness.

A simple sentence can be expressed in more than 20 ways, depending on the relative position of the speaker and the interviewee.

There are almost countless honorifics, most of which are embodied in nouns, adjectives, verbs and adverbs. The so-called honorifics are used to address the person you are talking to or something related to him/her, such as relatives, houses or property.

References:

Baidu Encyclopedia-Japanese