What is the meaning of Tech?

Technology.

Denotes technology businesses or the technology industry, especially in the field of computing and the Internet.

Technician; technologist.

Technique.

Technical college; technical school.

Clipping of technical rehearsal.

Clipping of technical inspection

To perform a technical (a special move in fighting games that cancels out an opposing attack).

tech (technology), particularly high-tech or digital technology

house

Source: wiktionary.org