Radical 辶

10 strokes

road 辶 (26a) + explosion 甬 (564a) = pass through 通

This has a range of other meanings including “connect”, “know”, “expert”, “common” and “whole”.

通过 (106) tōngguò to pass through; as a result of

通知 (490) tōngzhī to notify; a notice

[交通 (380) jiāotōng traffic, transportation]

When the road was blocked (in a landslip) they used an explosion to clear it so that traffic could pass through. / The giant used his tongs to help remove the rubble.

seal (560a) + use 用 (130) = explosion 甬

The top part of this character is the third, and final, variant of “seal” (560a) — don’t confuse this with “cocoon” (34a)

(The assassins are planting a booby trap) When the seal is next used it will cause an explosion and kill the king. / [No pronunciation needed]