Definitions:

1. A road junction in which one road joins another at right angles but does not cross it. NOUN
   • You will enjoy the main leisure route by turning right at the next main T-junction.
2. A three-way intersection at ground level where two roads meet but don't cross, forming the shape of the letter 'T'. NOUN
   • The road ended at a T-junction.

Synonyms:

• box junction
• intersection
• level crossing
• roundabout