Radical 宀

12 strokes

block up (768b) + ice crystals (246a) = freezing 寒

All the pipes in the house are blocked up with ice crystals in the freezing weather. / The fairy pulls lengths of lagging from her handbag (to wrap round the pipes).

house 宀 (91a) + bricks (768a) + eight 八 (20) = block up

The octopus built his house out of bricks and blocked up his chimney (to stop the wolf coming down — he’d read the story!) / [No pronunciation needed]