Abbreviations

how to read a crochet pattern 

   beg–beginning

   bet–between

   bl–back loop

   bo–bobble

   bpfl–back post

   bpdc–back post double crochet

   fptr–front post triple crochet 

   ca–colorA

   cb–colorB

   cc–contrast color

   ch(s)–chain(s)

   ch sp–chain space

   cl(s)–cluster(s)

   cont–continue

   dc–double crochet

   dec–decrease

   dtr–double treble crochet

   ea–each

   est–established

   fl–front loop

   foll–follow/follows/following

   fp–front post

   fpdc–front post double crochet

   fptrc–front post treple crochet

   g(gm)–grams

   gr–group

      hdc–half double crochet

      hk–hook

      inc–increase

      in(s)–inch(es)

      lp(s)–loop(s)

      m–meter

      MC–main color

      mm–millimeters

      RS–right side

      oz(s)–ounce(s)

      pat st–pattern stitch

      pc–popcorn

      pm–place marker

      prev–previous

      rem–remaining

      rep(s)–repeat(s)

         rnd–round

       sc–single crochet

       sc2tog–single crochet two stitches together

       sk–skip

       sl–slip

   sl st–slip stitch

   sp(s)–space(s)

   st(s)–stitch(es)

   tch or t-ch–turning chain

   thru–through

   tr tr–triple treble crochet

   tog–together 

   tr–treble(or triple)crochet

   ws–wrong side

   yd–yard(s)

   yo–yarn over

hope you like this useful chart :)