TEL is a three-letter acronym for:
- Tetra-ethyl lead, a gasoline additive to make leaded gasoline
- Tokyo Electron, a semiconductor equipment manufacturer
- Transporter erector launcher, a mobile missile launch platform
- Technology-Enhanced Learning
- The European Library
- Tax and Expenditure Limitation, a mechanism to limit growth in tax revenues, spending or both
- Test of Economic Literacy
- TEL oncogene
- Telugu language, ISO 639 code
- Thomas Edward Lawrence, also known as Lawrence of Arabia
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