What is the meaning of the prefix 'auto-'?

Answer 1

Automobile: moves by itself

Autograph: written by someone by himself

Autobiography: a biography written by the person himself

Autopilot: the plane flies itself

Autoerotic . . .

You can probably figure it out.

Answer 2

7-letter words
autobus, autoing, automan, automen, autopsy

8-letter words
autobahn, autocade, autocoid, autocrat, autodyne, autogamy, autogeny, autogiro, autogyro, autolyze, automata, automate, autonomy, autopsic, autosome, autotomy, autotype, autotypy

9-letter words
autobahns, autobuses, autocades, autoclave, autocoids, autocracy, autocrats, autocross, autodynes, autoecism, autogenic, autogiros, autograft, autograph, autogyros, autolysed, autolyses, autolysis, autolytic, autolyzed, autolyzes, automaker, automated, automates, automatic, automaton, autonomic, autopilot, autopsied, autopsies, autoroute, autosomal, autosomes, autotelic, autotroph, autotypes

10-letter words
autobahnen, autobusses, autochthon, autoclaved, autoclaves, autocratic, autodidact, autoecious, autoecisms, autoerotic, autogamies, autogamous, autogenies, autogenous, autografts, Autographs, autography, autoimmune, autologous, autolysate, autolysing, autolyzate, autolyzing, automakers, automatics, automating, automation, automatism, automatist, automatize, automatons, automobile, automotive, autonomies, autonomist, autonomous, autopilots, autopsying, autorotate, autoroutes, autosexing, autostrada, autostrade, autotomies, autotomize, autotomous, autotrophs, autotrophy, autotypies, autoworker

11-letter words
autocephaly, autochthons, autoclaving, autocracies, autocrosses, autodidacts, autoerotism, autografted, autographed, autographic, autoloading, autolysates, autolyzates, automatable, automations, automatisms, automatists, automatized, automatizes, automobiled, automobiles, autonomists, autorotated, autorotates, autosomally, autostradas, autosuggest, autotomized, autotomizes, autotrophic, autoworkers

12-letter words
autoantibody, autochthones, autocratical, autodidactic, autoeciously, autoerotisms, autogenously, autografting, autographies, autographing, autohypnoses, autohypnosis, autohypnotic, autoimmunity, automaticity, automatizing, automobiling, automobilist, automobility, automorphism, autonomously, autorotating, autorotation, autosuggests, autotomizing, autotrophies, autoxidation

13-letter words
autobiography, autocatalyses, autocatalysis, autocatalytic, autocephalies, autocephalous, autochthonous, autoeroticism, autoinfection, automatically, automobilists, automorphisms, autonomically, autopolyploid, autoradiogram, autorotations, autosuggested, autoxidations

14-letter words
autoantibodies, autobiographer, autobiographic, autocratically, autoeroticisms, autoimmunities, autoinfections, automaticities, automatization, automobilities, autopolyploids, autopolyploidy, autoradiograms, autoradiograph, autosuggesting, autosuggestion, autotetraploid

15-letter words
autobiographers, autobiographies, autochthonously, autocorrelation, autographically, automatizations, autoradiographs, autoradiography, autosuggestions, autotetraploids, autotetraploidy, autotransformer, autotransfusion, autotrophically

16-letter words
autobiographical, autocorrelations, autoimmunization, autointoxication, autopolyploidies, autoradiographic, autotransformers, autotransfusions

17-letter words
autocatalytically, autoimmunizations, autointoxications, autoradiographies, autotetraploidies

18-letter words
autobiographically

Answer 3

Auto means self, so for example, automobile means self moving. It doesn't need horses to move it, because it moves itself.

Answer 4

Automobile

Automatic

Answer 5

alone

Answer 6

autocorrect