a short, jerky motion: a bob of the head.
to move quickly down and up: to bob the head.
to indicate with such a motion: to bob a greeting.
to make a jerky motion with the head or body.
to move about with jerky, usually rising and falling motions: The ball bobbed upon the waves.
bob up, to emerge or appear, especially unexpectedly: A familiar face bobbed up in the crowd.
Other definitions for bob (2 of 5)
a style of short haircut for women and children.
a docked horse's tail.
a dangling or terminal object, as the weight on a pendulum or a plumb line.
a short, simple line in a verse or song, especially a short refrain or coda.
a knot of worms, rags, etc., on a string.
a float for a fishing line.
a bobsled or bob skate.
Scot. a bunch, cluster, or wad, especially a small bouquet of flowers.
Obsolete. walking beam.
to cut short; dock: They bobbed their hair to be in style.
to try to snatch floating or dangling objects with the teeth: to bob for apples.
Angling. to fish with a bob.
Other definitions for bob (3 of 5)
a tap; light blow.
a polishing wheel of leather, felt, or the like.
to tap; strike lightly.
Other definitions for bob (4 of 5)
Other definitions for Bob (5 of 5)
a male given name, form of Robert.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use bob in a sentence
By arranging objects in specific ways, Alice tries to set puzzles that are hard for bob to solve.These virtual robot arms get smarter by training each other | Will Heaven | January 22, 2021 | MIT Technology Review
As they learn, Alice sets more complex puzzles and bob gets better at solving them.These virtual robot arms get smarter by training each other | Will Heaven | January 22, 2021 | MIT Technology Review
When bob tested participants during the day, he got exactly the results he expected—strong primes like right produced three times as much priming as weak primes like thief.
bob’s results suggested his participants’ brains were activating strongly related words three times more effectively than they were weakly related words.
At the end, bob calculated how fast and how accurate participants were when responding to the words and non-words.
Goodell otherwise bobbed and weaved his way through half an hour of grilling by skeptical reporters.Roger Goodell’s TV Disaster Shows What’s Wrong With The NFL | Lloyd Grove | September 19, 2014 | THE DAILY BEAST
And I had the blonde, bobbed hair with like really high bangs that went super high.‘Surviving Jack’ Star Rachael Harris Is No Longer ‘The Bitch' | Kevin Fallon | March 27, 2014 | THE DAILY BEAST
Behind them bobbed the smaller ships; in the third line were merchant boats and the royal galleys.
At the defense table, Jerry Sandusky smiled broadly and bobbed his head up and down at the memory.Jerry Sandusky Trial, Day Three: The Defense Gets Steamrolled | Diane Dimond | June 14, 2012 | THE DAILY BEAST
Pretty much all the research I did for playing an Anna Wintour type was, I went shopping for a bobbed wig.Miss Piggy Dishes on Muppets Movie, Kermit, Ernie and Bert Rumors | Ramin Setoodeh | November 22, 2011 | THE DAILY BEAST
“I am sure they are going to use my idea,” Belle Ringold said, with a toss of her bobbed curls.The Campfire Girls of Roselawn | Margaret Penrose
She smiled and shook her bobbed curls and altogether acted in a rather ridiculous way.The Campfire Girls of Roselawn | Margaret Penrose
At every step she took, her golden curls bobbed against her cheek, and so limping she sat down on a bank by the roadside.Honey-Bee | Anatole France
Talpers bobbed his head, but not enough to break the stare he had bent upon the girl, who flushed under his scrutiny.Mystery Ranch | Arthur Chapman
This time there was a faint scream in answer and a mauve-and-white bonnet bobbed agitatedly up the road.
British Dictionary definitions for bob (1 of 5)
to move or cause to move up and down repeatedly, as while floating in water
to move or cause to move with a short abrupt movement, as of the head
to make (a bow or curtsy): the little girl bobbed before the visitor
(intr usually foll by up) to appear or emerge suddenly
(intr; foll by under, below, etc) to disappear suddenly, as beneath a surface
(intr usually foll by for) to attempt to get hold (of a floating or hanging object, esp an apple) in the teeth as a game
a short abrupt movement, as of the head
a quick curtsy or bow
bell-ringing a particular set of changes
short for bobfloat
the topmost fly on a cast of three, often fished bobbing at the surface
this position on a wet-fly cast
British Dictionary definitions for bob (2 of 5)
a hairstyle for women and children in which the hair is cut short evenly all round the head
a dangling or hanging object, such as the weight on a pendulum or on a plumb line
a polishing disc on a rotating spindle. It is usually made of felt, leather, etc, impregnated with an abrasive material
a runner or pair of runners on a bobsled
angling a small knot of worms, maggots, etc, used as bait
a very short line of verse at the end of a stanza or preceding a rhyming quatrain (the wheel) at the end of a stanza
a refrain or burden with such a short line or lines
a docked tail, esp of a horse
British dialect a hanging cluster, as of flowers or ribbons
(tr) to cut (the hair) in a bob
(tr) to cut short (something, esp the tail of an animal); dock or crop
(intr) to ride on a bobsled
British Dictionary definitions for bob (3 of 5)
to tap or cause to tap or knock lightly (against)
a light knock; tap
British Dictionary definitions for bob (4 of 5)
British (formerly) an informal word for a shilling (def. 1)
British Dictionary definitions for Bob (5 of 5)
Bob's your uncle slang everything is or will turn out all right
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012