搭
dā · HSK 6
join together
🔨 hand 扌 + 答 (answer/match) — hand matches pieces together to build
扌 (hand radical) + 答 (dā, to answer/match) gives 搭: a hand joining or matching things — hence put up, construct, add on. The 答 component also carries the dā sound, so it doubles as a phonetic clue.
搭 — hand radical 扌 + 荅 (phonetic)
A semantic-phonetic compound. The hand radical 扌 signals the meaning—an action done with the hands, originally 'to join, attach, or build up.' The right side 荅 supplies the sound 'dā.' From 'joining together' it extended to 'putting up' (a tent), 'riding' (joining a vehicle), and 'matching as a pair.'