i Register
In some senses, semantic is marked as slang. Watch for register when choosing this word.
adj
Of or relating to semantics or the meanings of words.
Reflecting intended structure and meaning.
Petty or trivial; (of a person or statement) quibbling, niggling.
noun
In such writing systems as the Chinese writing system, the portion of a phono-semantic character that provides an indication of its meaning; contrasted with phonetic.
Its semantic is polysyllabic, viz. it uses the word formations of spoken Chinese.
In this particular case, the semantic is on the left of its host sinogram.