挺

tǐng
Left: hand 扌, right: judicial court 廷 (The movement 廴 of a scholar 士 with hat 壬 [= judge] to the court.)
The hand at the judicial court decides straight and upright.

庭

tíng
Left: building 广, below: judicial court 廷 (The movement 廴 of the scholar 士 with a hat 壬 [=judge] to the court.)
The building of the court is its main hall.

艇

tǐng
From left: boat 舟 (rowing boat with two persons 丶丶), judicial court 廷 (The movement 廴 of a scholar 士 with hat 壬 [= judge] to the court.)
The boat of the movement of only one scholar (with hat) 壬 is a (small) speed boat.

霆

tíng
Top: rain 雨 (= window 冂 with cloud 一 and drops 丶丶), bottom: judicial court 廷 (The movement 廴 of a scholar 士 with hat 壬 [= judge] to the court.)
The rain, as well as the judicial court makes: "claps of thunder".

廷

tíng
Left: movement 廴, right: 壬 (scholar 士 with hat 壬)
The movement of the scholar with hat to the judicial court.