What 竊 means
It means steal, secretly, or private.
The earliest form I found comes from the Warring States period, a Chu-script graph made to write theft. Early analysis reads 米 and 攴 as meaning parts and 禼 for sound, with a later form recorded in a Western Han manuscript.
Is 竊 the traditional form of 窃? Yes — use 竊 for Traditional Chinese and 窃 for Simplified Chinese and modern Japanese. It also covers usurp, plagiarize, act secretly, and a humble “I”. Your font draws it; there is no emoji artwork.
Serious, written, and accusatory around theft.
Alone, it may sound like “you stole.”
Combination ideas
3Questions people ask
1Why does 竊 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type 竊
竊\7ACACodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.