First Post | Multilingual Observation | Similar, Yet Different Words Across Languages

It happened during a regular meeting with a partner company in China, as usual. The person I was speaking with (whose native language is Chinese and who also uses Japanese for work) said something while explaining that they were checking the data carefully, one by one.
"I am checking them 'ichi-ichi' (one by one)."
...Hmm?
I felt a sense of discomfort that she, who is usually polite, would use a negative word like "ichi-ichi." It suddenly occurred to me that it might be related to the Chinese phrase "yīcì yīcì."

Japanese: ichi-ichi

Fussy and troublesome. Somewhat negative.

Chinese: yīcì yīcì

Repeatedly and carefully, valuing each and every time. Positive.

This discomfort seems to stem from a difference in values regarding "repetition." It was an event that made me realize that language is the very mold of our thinking.

It might be interesting to collect these "similar but different words." Thinking that, I started taking notes on such words while aiming to acquire multiple languages.

Recently, I showed the large amount of notes I had accumulated to people at work, and they found it interesting. Perhaps there are more people in the world who would find it interesting as well.
Also, I have a large amount of notes on how I have been proceeding with multilingual learning in the first place, and how it might be possible to proceed more smoothly. This might also be useful to someone.
Thinking this, I came up with the idea of posting these notes on note. I would like to share them here little by little from now on.

I would be happy if you could read them when you feel like it.

* Multilingual Observation Table of Contents ↓