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Prefixes.  A prefix is a part of a word that goes in front of the word and it changes its meaning.

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Presentation on theme: "Prefixes.  A prefix is a part of a word that goes in front of the word and it changes its meaning."— Presentation transcript:

1 Prefixes

2  A prefix is a part of a word that goes in front of the word and it changes its meaning

3 re- means again  Redodo again  Rereadread again  Repaintpaint again  Reviewview again  Rewritewrite again  Replaceplace again  Readjustadjust again  Replayplay again

4 over- means too much  Overtaketake too much  Overdodo too much  Overheatheat too much  Overtimetoo much time  Overchargecharge too much  Overseesee too much  Overproduceproduce too much

5 Trans- across  Transatlanticacross the Atlantic  Transportationacross places  Transplanttake a plant across  Transportmove across  Transferacross places  Transformacross forms  Transmissionacross mission

6 anti- means against  Antibioticsagainst life  Antiwaragainst war  Anticanceragainst cancer  Anticavitiesagainst cavities  Anticorruptionagainst corruption

7 mid- means middle  Midairin the middle of the air  Midbrainin the middle of the brain  Midafeternoonin the middle of the afternoon  Midnightin the middle of night  Midmorningin the middle of the morning  Middlemana man in the middle  Midwayin the middle of the way

8 under- means below  Underachieverbelow achieving  Underwearbelow wear  Undercoverbelow cover  Undergroundbelow ground  Understandbelow standing  Underwaterbelow water

9 Vice- means second in line  Vicepresidentsecond after president  Viceprincipalsecond after principal

10 em- and en mean cause to  Emptycaused to become not filled  Embalmcaused to have balm  Embedcaused to be covered  Embarkcaused to be shipped  Entrapcaused to be trapped  Enrichcaused to be rich  Endurecause to last

11 post-, means after  Postwarafter the war  Postfractureafter fracture  Postdiveafter dive  Postexerciseafter exercise

12 pre-, means before  Preschoolbefore school  Precookbefore cooking  Prewritebefore writing  Preseasonbefore season

13 uni-, means one  Unicycleone wheel  Uniformone form  Unibrowone brow

14 bi-, means two  Bicycletwo wheels  Bipolartwo poles or sides  Billiontwo millions

15 tri-, means three  Tricyclethree wheels  Trianglethree angles  Trillionthree millions  Triceratopsthree horns  Trimesterthree months

16 kilo-, means thousand  Kilometerthousand meter  Kilobytethousand bytes  Kilowattthousand watts

17 cent-, means hundred  Centimetera hundred meters  Centipedea hundred legs  centurya hundred years  Centa hundred in a dollar

18 deca-, means ten  Decagonshape of ten sides  Decameterten meters  Decadeten years

19 poli-, means many  Polygonshape with many sides  Polytheistmany gods (theos = god)  Polytechnic many techniques  Polyphony many sounds (phone=sound)

20 penta-, means five  Pentagonshape of five sides  Pentatonicmelody with five tones  Pentathlon 5 sports athlete

21 hexa-, means six  Hexagonshape with six sides

22 octa-, means eight  Octagonshape with 8 sides  Octopusanimal with 8 arms

23 dis-, un-, mean not  Discovernot covered  Distractnot in tract  Displaynot for play  Disarmnot armed  Uncoverednot covered  Unmatchednot matched  Unfitnot fitted

24 im- means not it’s used when words start with m- or p-  Impossiblenot possible  Impersonatenot the person  Immobilenot mobile  Imposenot to pose  Impersonalnot personal

25 ir- means not it’s used when words start with r-  irresponsiblenot responsible  irregularnot regular  Irreverentnot reverent  Irredeemablenot redeemable  Irreparablenot reparable

26 il- means not it’s used when words start with l-  illegalnot legal  illogicalnot logical  illiteratenot literate (can’t read)

27 in- means not it’s used when words don’t start with m- or p-  indestructiblenot destructible  Invinciblenot vincible  Indistinctnot different

28 In- means into  Inputput in  Intaketake in  Inletlet it

29 mis- means wrong  Mislaywrongly layed  Misplacewongly placed  Misprintworngly printed  Mismatchedwrongly matched  Misfitwrongly fitted  Misplaywrongly played  Mistakewrongly taken

30 ambi- means both  Ambidextrouswrites with both hands  Ambivalenthas both values

31 sub- means under  Subwayunder the way  Submarineunder the sea  Substituteunder power  Sub consciousunder conscience  Substructureunderstructure


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