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Definition of dot noun from the Oxford Advanced Learner's Dictionary

dot

noun
 
/dɒt/
 
/dɑːt/
Idioms
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  1. a small round mark, especially one that is printed
    • There are dots above the letters i and j.
    • Text and graphics are printed at 300 dots per inch.
    • The helicopters appeared as two black dots on the horizon.
    • The island is a small green dot on the map.
    see also polka dot
    Synonyms patchpatchdot mark spotThese are all words for a small part on a surface that is a different colour from the rest.patch an area of something, especially one which is different from the area around it:
    • a white dog with a black patch on its head
    • patches of dense fog
    dot a small round mark on something, especially one that is printed:
    • The letters ‘i’ and ‘j’ have dots over them.
    • The island is a small green dot on the map.
    mark an area of colour that is easy to notice on the body of a person or animal:
    • The horse had a white mark on its head.
    spot a small round area that is a different colour or feels different from the surface it is on:
    • Which has spots, a leopard or a tiger?
    Patterns
    • a patch/​dot/​mark/​spot on something
    • with patches/​dots/​marks/​spots
    • a blue/​black/​red, etc. patch/​dot/​mark/​spot
    Topics Languageb2
  2. (computing) a symbol like a full stop used to separate parts of a domain name, a URL or an email address
  3. the shorter of the two signals that are used in Morse code
    • Telegrams were sent using the complex dots and dashes of Morse code.
    compare dash (5)
  4. (music) a small round mark that appears after a musical note to show that it should last for an extra half of its usual length, or above a musical note to show that it should be played staccato
    • A dot after a note lengthens its duration by half.
    • The dot above some notes means they are to be played staccato, the opposite of legato.
    Topics Musicc2
  5. Word OriginOld English dott ‘head of a boil’. The word is recorded only once in Old English, then not until the late 16th cent., when it is found in the sense ‘a small lump or clot’, perhaps influenced by Dutch dot ‘a knot’. The sense ‘small mark or spot’ dates from the mid 17th cent.
Idioms
on the dot
  1. (informal) exactly on time or at the exact time mentioned
    • The taxi showed up on the dot.
    • Breakfast is served at 8 on the dot.
    • Please tell him I’ll call him on the dot of twelve.
the year dot (British English)
(North American English the year one)
  1. (informal) a very long time ago
    • I've been going there every summer since the year dot.
See dot in the Oxford Advanced American DictionarySee dot in the Oxford Learner's Dictionary of Academic English
generic
adjective
 
 
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