dǐng
top
Phonosemantic compound. 页 represents the meaning and 丁 represents the sound. Simplified form of 頂.
Evolution

Bronze script
Early Western Zhou (~1000 BC)
Seal script
Shuowen (~100 AD)Traditional script
ModernSimplified script
ModernDefinitions
dǐng
top, peak; carry on head; very; apex; crown of the head; top; roof; most; to carry on the head; to push to the top; to go against; to replace; to substitute; to be subjected to (an aerial bombing, hailstorm etc); (slang) to "bump" a forum thread to raise its profile; classifier for headwear, hats, veils etc
Sources