What's the difference between bob and bobber?

Bob

Definition:

(n.) Anything that hangs so as to play loosely, or with a short abrupt motion, as at the end of a string; a pendant; as, the bob at the end of a kite's tail.
(n.) A knot of worms, or of rags, on a string, used in angling, as for eels; formerly, a worm suitable for bait.
(n.) A small piece of cork or light wood attached to a fishing line to show when a fish is biting; a float.
(n.) The ball or heavy part of a pendulum; also, the ball or weight at the end of a plumb line.
(n.) A small wheel, made of leather, with rounded edges, used in polishing spoons, etc.
(n.) A short, jerking motion; act of bobbing; as, a bob of the head.
(n.) A working beam.
(n.) A knot or short curl of hair; also, a bob wig.
(n.) A peculiar mode of ringing changes on bells.
(n.) The refrain of a song.
(n.) A blow; a shake or jog; a rap, as with the fist.
(n.) A jeer or flout; a sharp jest or taunt; a trick.
(n.) A shilling.
(n.) To cause to move in a short, jerking manner; to move (a thing) with a bob.
(n.) To strike with a quick, light blow; to tap.
(n.) To cheat; to gain by fraud or cheating; to filch.
(n.) To mock or delude; to cheat.
(n.) To cut short; as, to bob the hair, or a horse's tail.
(v. i.) To have a short, jerking motion; to play to and fro, or up and down; to play loosely against anything.
(v. i.) To angle with a bob. See Bob, n., 2 & 3.

Example Sentences:

(1) "For a few it will feel like having your wallet nicked with the mugger then handing you a few bob back to buy a pint.
(2) Bobbing in warming waters, this ancient ice fossil will be gone in a couple of weeks.
(3) Bob Farnsworth, president of Nashville, Tennessee-based Hummingbird Productions, told trade publication Variety that the film was set for release in 2015 and would star Karolyn Grimes, who played George Bailey's daughter in the original film.
(4) The Weinstein Company, which Harvey owns with his brother Bob, lost rights to the title on Tuesday following a ruling by the Motion Picture Association of America's arbitration board.
(5) We studied bobbed loci at different magnification steps, analysing their behaviour through the reversion process and the way they carry out a second round of magnification.
(6) There was also an OBE for Daily Mirror advice columnist and broadcaster, Dr Miriam Stoppard , while Dr Claire Bertschinger , whose appearance in Michael Buerk's 1984 reports from Ethiopia inspired Bob Geldof to organise Live Aid, was made a dame for services to nursing and international humanitarian aid.
(7) I will destroy you.” Khan, a former WBA and IBF light world welterweight champion, also turned on Manny Pacquiao, accusing him and his team, led by Bob Arum, of providing conflicting reasons for choosing to fight Timothy Bradley in April, instead of the Bolton born boxer.
(8) The remaining four crossbench senators – Jacqui Lambie, Bob Day, Dio Wang and Glenn Lazarus – are still in negotiations and have not yet reached a position on the bill.
(9) Having women in top jobs doesn't make any difference anyway If this were the case, why would some of the best brains, both male and female, in the government, including Sir Bob Kerslake , head of the civil service, be concerned about it?
(10) Bobbed mutants also have the same molar ratios as wild-type flies.
(11) It would have been known as the Office of Congressional Complaint Review, and the rule change would have required that “any matter that may involve a violation of criminal law must be referred to the Committee on Ethics for potential referral to law enforcement agencies after an affirmative vote by the members”, according to the office of Representative Bob Goodlatte, a Republican from Virginia who pushed for the change.
(12) After more than a year together, Jenny felt that Bob had given her the right signals that he was interested in having children with her.
(13) Hardy headlines as an ex-con named Bob Saginowski who is trying to live out a quiet life away from crime as a bartender.
(14) And in Colorado the fiercely anti-immigration conservative and former presidential candidate Ted Tancredo was comfortably overcome by a more moderate former congressman, Bob Beauprez, in the primary to choose the Republican candidate for the state's governor.
(15) Analysis of the rates and amounts of rRNA and 5s RNA synthesized in Drosophila melanogaster bobbed mutants was done by using acrylamide-gel electrophoresis.
(16) Following the last model’s disappearance backstage, Galliano appeared briefly in front of the audience and bobbed a blink-and-you-missed-it bow, dressed in the white lab coat that is the uniform of the Maison Margiela label for whom he now designs.
(17) Bob Cannell, member of Suma Wholefoods workers co-operative "Suma had its best ever business results in 2013 and there have been similar results for other worker co-ops such as Unicorn Grocery in Manchester.
(18) "Ghana are a talented team and their coach has them well organised," the USA coach, Bob Bradley, said.
(19) With her blond bob, convertible car, cigarette in hand and cropped top emblazoned with the letters YOLO ("You Only Live Once"), this is an Alice in Wonderland the world has not seen before.
(20) The results are consistent with the hypothesis that the bobbed locus contains multiple cistrons, some threshold number of which are needed to produce ribosomal RNA and the normal phenotype.