overcharge

1 to charge (someone) too much for goods or services <I think that store may have overcharged us for the shoes, which were supposed to be on sale> Synonyms gouge, soak, sting, surcharge Related Words cheat, defraud, stick; clip, fleece, skin; mischarge Antonyms undercharge

2 to fill or load to excess <overcharged his thesis with long, fancy words> Synonyms overburden, overload, overfillRelated Words stuff; burden, charge, encumber, lade, laden, load, lumber, saddle, weigh down, weightNear Antonyms lighten, unburden, unload