capsule corp.
This is the symbol of the Capsule Corporation, which is owned by Bulma's father, Dr. Briefs

garlic jr.
this is the garlic jr. symbol. it appears in movie 1 and garlic jr. saga.

R<>R
this is a symbol of red ribbon army. It's on everything they have(jackets, caps,...)

majin
this is a babidi symbol. It means majin. It appeare on forehead and stomach.

cooler's group
this is the simbol of cooler's group members. It apeares in movie 5 on their jackets.

Ginyu force
This is the symbol that is found on the clothing of all the Ginyu Force members and on their equipment such as their spacepods and is very similar to that worn by Cooler's Force members.

''son''
This is the symbol that Gohan wears when he was little. It stands for "Son"

god (kami) ?
This symbol stands for Shin which beasically means God or Guardian of the Earth.

tao the assasin ''kill you''
This is worn only by Mercenary Tao the assassin. It translates to the word Saat which means Kill You. He also has the words Kill You in english on the back of his clothes

pilaf
This symbol we see only worn by Emperor Pilaf. Anything is unknown.

piccolo, gohan, king piccolo
This is the symbol worn by King Piccolo, Piccolo, and Gohan. It translates out to the word Ma which means Evil and Demonic

yamcha
We see this symbol worn only Yamcha and only up until he starts training under Master Roshi. It translate into: ''happines''

krilin
This is one of the most common symbols in Dragonball. This is Master Roshi's symbol and is worn by the people he trains. It means Turtle or Kame

kaio
This is the symbol that we see King Kai wear. At first we only see North Kai wearing it but all the King Kai's wear it aswell. It means World-King

master shen
This symbol is worn by Master Shen and all his students. It translates out to the word Hok which means Crane.

gohan
This is the symbol we see worn by Gohan in the future timeline on the back of his gi. It translates to Han which means Meal, Boiled Rice

ox king
This is the symbol worn by Ox-King which of course means Ox or Cow

Goku
This is the symbol that we see Goku wear during his time on Namek. He receives this uniform from King Kai after his training with him. The symbol translates to the word Go which means you understand / enlightenment / discern.

grand kai
This is the symbol of the Grand Kai which translates to Dai. It means Grand as he is the Grand Kai.

chaotzu
This symbol translated mean Chao which means Dim-sum. It's worn only by Chiaotzu. Thats all i now about this one.