A gang is a group of people who are friends or work together. They often meet to do things or have fun. This is the basic, everyday meaning.
My friends and I form a small gang.
The gang met at the park every day.
A gang can mean a group of people who do illegal things together. They may steal, sell illegal goods, or do other crimes. This is a more serious and negative meaning.
The police caught the gang of thieves.
Gang members often avoid the police.
In machines, a gang is a group of similar parts working together. For example, many gears or blades fixed together form a gang. This is a technical, mechanical meaning.
The machine has a gang of gears inside.
This tool has a gang of sharp blades.
A gang can be a team of workers who do physical jobs together. These gangs often do construction or cleaning work. This meaning is common in some countries.
The gang worked hard to build the road.
A gang cleaned the streets this morning.
Gang can mean friends or a small group of people you like to be with. It is often used in a friendly and casual way, especially in speech.
My gang is coming to my house.
His gang always plays together after school.
Gang as a verb means people coming together as a group. It often means working with others for a shared goal or to act as a team.
The workers ganged together for safety.
The players ganged up to win the game.
In mining, gang means useless rock or materials mixed with valuable minerals. Miners remove gang to get the good minerals. This is a technical, specialized meaning.
The miners removed the gang from the gold ore.
Gang minerals lower the mining value.