impossible to understand, utterly confused

珊々, 珊珊: / 毿々, 毿毿: / 潸々, 潸潸: / 燦々, 燦燦, 粲々, 粲粲: brilliant, bright

三々, 三三:

first thing in the morning

being the first to enter a freshly-prepared bath

is the best among (others)

参加: participation / 酸化: oxidation, combustion / 惨禍: catastrophe, disaster / 傘下: subsidiary / 産科: obstetrics / 賛歌, 讃歌, 讚歌: song of praise, hymn, paean / 山家: mountain villa

酸化: oxidize, become oxidized / 参加: participate, join, take part

A title used after person's name (first name or surname) regardless of sex; Mr, Ms, Mrs, Miss. Also used after a job title and a company name. / (colloquial) Used after a shop name.

三角形: triangle