绑架
bǎng jià · HSK 7
to kidnap
🪢 bǎng = bind/tie + jià = rack/frame — tied to a frame, kidnapped
绑 means to bind or tie up, 架 means a frame or rack. Someone bound and strapped to a frame — that's an abduction. The sound 'bǎng' echoes 'bang' like slamming a door shut on the victim.
绑 — silk radical 纟 + 邦 (bāng)
绑 is a semantic-phonetic compound. The silk radical 纟 gives the meaning, since binding was traditionally done with cords or silk ropes. The right side 邦 (bāng) supplies the sound, slightly shifted to bǎng. The character thus means 'to tie' or 'to bind'.
架 — wood 木 + add 加 (phonetic)
A semantic-phonetic compound: 木 (wood) gives the meaning, since a 架 is a wooden frame, rack, or shelf used to support things. 加 (jiā) supplies the sound. From 'wooden frame' it extended to verbs like 'to set up,' 'to prop up,' and to a measure word for framed objects such as airplanes.