This is the 309th most frequent Japanese word.
形
"Shape," "form," or "appearance."
The word '形' (katachi) refers to the physical form or appearance of something.
形は美しいものです。
Shape is a beautiful thing.
In this context, '形' (katachi) represents the structure or way something is presented.
問題の形を変えれば答えが見つかるかもしれません。
If you change the form of the question, you might find the answer.
Here, '形' (katachi) implies a superficial or outer appearance, rather than the essence or sincerity of something.