radical
Some words with the D as the third letter are:AddictaddledbadbedcedarcodediddudeeiderfederalfiddlegadgetGodhadhideindecentiodinejadejudgekidmadeMcDonald'snodnudeoddoldpadpedalRadarriddlesadsedatetadpoletediousudderundovideowadewidowyodel
medicated
ardvark
understand
vodka
Width
The third largest city in Pennsylvania starting with the letter D is Durham.
Midlothian
oddly
Oedipal
arduous, ordinal
divdie