关

guān
Top: out of 丷, below: heaven 天 - Shows a mountain pass (=lowest section of the ridge), which is "in the sky", but from which it gets higher 丷
(Depending on the weather) A mountain pass can be closed.

送

sòng
Left: movement 辶, right: to close 关 (The mountain pass 丷 in the sky 天 is closed.)
Down out of 丷 heaven 天 with a movement this was delivered.

联

lián
Left: ear 耳 (image of a pinna), right: to close 关 (The mountain pass 丷 in the sky 天 is closed.)- (cf. deaf 聋)
Those whose ears are closed (= the deaf) join in a union.

郑

zhèng
Left: to close 关 (The mountain pass 丷 in the sky 天 is closed.), right: village⻏ (If this radical⻏ is at the right it means village, otherwise: hill)
If the mountain pass is closed, for the village this will be: serious.

朕

zhèn
Left: body 月/肉, right: to close 关 (The mountain pass 丷 in the sky 天 is closed.)
A body from heaven: that's Us.