上调
shàng tiáo · HSK 7
to raise
📈⬆️ 上调 = 上 (up) + 调 (adjust) = adjust upward
上 means up or above; 调 means to adjust or regulate. Stack them and you get adjusting something upward, most often prices or rates being pushed higher.
上 — horizontal line above a baseline
上 is an indicative character (指事): a short stroke placed above a longer reference line shows the concept of 'above' or 'up'. The earliest oracle-bone forms used two horizontal lines for this; the modern shape added a vertical stroke for clarity. The core meaning of 'upper, above, to ascend' has stayed stable for millennia.
调 — speech radical 讠(言) + 周 zhōu (phonetic)
调 is a semantic-phonetic compound. The 讠(言) radical signals 'speech' or 'words,' while 周 supplies the sound. Originally meaning to harmonize or coordinate through words, it later extended to 'tune,' 'adjust,' and 'melody' (read diào), and 'mix evenly' or 'mediate' (read tiáo).