The kanji 症 primarily means "symptom," "ailment," "disease," or "condition" related to the body or mind. It implies a state of being unwell or suffering from some form of illness. It focuses on the outward manifestation or the internal nature of a health problem.

・On-yomi (音読み): ショウ ・Kun-yomi (訓読み): None. This kanji is primarily used in compound words and doesn't have a standalone Kun-yomi.

⚫︎ 症状 (しょうじょう) Translation: Symptom; condition; ailment ⚫︎ 病症 (びょうしょう) Translation: Disease; illness; symptom ⚫︎ 自閉症 (じへいしょう) Translation: Autism

The kanji 症 is a phono-semantic compound (形声文字). ⚫︎ The left side is a "radical" or "部首 (ぶしゅ)" called 疒 (やまいだれ), meaning "sickness" or "illness". This part provides the meaning. ⚫︎ The right side is 㐱 (しん, shin), which functions as the phonetic component and gives a clue to the pronunciation. The meaning is about being full of hair. Combining these elements, 症 suggests a condition or state (the 疒 radical) related to illness, in which the outward signs or symptoms are present.