more or less in WordNet English dictionary

1. (of quantities) imprecise but fairly close to correct
   "lasted approximately an hour"; "in just about a minute"; "he's about 30 years old"; "I've had about all I can stand"; "we meet about once a month"; "some forty people came"; "weighs around a hundred pounds"; "roughly $3,000"; "holds 3 gallons, more or less"; "20 or so people were at the party"
   approximately  about  close to  just about  some  roughly  more or less  around  or so  approximately  about  close to  just about  some  roughly  more or less  around  or so 
   
2. to a small degree or extent
   "his arguments were somewhat self-contradictory"; "the children argued because one slice of cake was slightly larger than the other"
   slightly  somewhat  more or less  slightly  somewhat  more or less 
   

more or less in English Wiktionary