verb

• (transitive, now historical or ceremonial) To confer knighthood; the conclusion of the ceremony was marked by a tap on the shoulder with a sword, the accolade.
  "You promiſt Knighthood to our forward ſonne, / Vnſheath your ſword, and dub him preſently."
• (transitive, now informal) To name, to entitle, to call.
  "They tripped along the murky aisles with the rest of the company, visiting the familiar wonders of the cave—wonders dubbed with rather over-descriptive names, such as “The Drawing-Room,” “The Cathedral,” Aladdin’s Palace,” and so on."
• (transitive) To deem.
  "A man of wealth is dubbed a man of worth."
• (heading) To strike, rub, or dress smooth; to dab.
  "to dub a stick of timber smooth"

verb

• (golf) To execute a shot poorly.

noun

• (rare) A blow, thrust, or poke.
  "And kettle-drums, whose sullen dub Sounds like the hooping of a tub"
• (golf) A poorly executed shot.

noun

• (slang, now historical) An unskillful, awkward person.
  "As I came over the hill, I saw Ernest Plinlimmon and his partner, in whom I recognized a prominent local dub, emerging from the rough on the right. Apparently, the latter had sliced from the tee, and Ernest had been helping him find his ball."