大数据
dà shùjù · HSK 7
Big Data
📊 大 big + 数据 data = Big Data, literally big-numbers-evidence
大 means big or great. 数 means number or count, 据 means evidence or basis. Together 数据 is data (number-evidence), and prefixing 大 scales it up — big number-evidence, i.e. Big Data.
大 — pictograph of a person with arms outstretched
大 is a pictograph showing a person standing with arms and legs spread wide. The outstretched arms suggest 'big' or 'great', extending from the literal image of a large stance to abstract meanings like important or grand. It is one of the oldest characters, found on oracle bones.
数 — 婁 (lóu, phonetic) + 攵 (action radical)
数 is a phono-semantic compound. The right side 攵 (a hand holding a stick) suggests an action, originally tallying or counting by striking marks. The left side 婁 supplies the sound. Over time the meaning broadened from 'to count' to 'number' and 'several'.
据 — hand radical 扌 + 豦
据 combines the hand radical 扌 with the phonetic component 豦. Originally meaning to seize or grasp with the hand, it later extended to 'rely on' or 'according to.' In modern simplified Chinese, 据 also serves as the simplified form of 據, merging the two characters' meanings.