Definition of trench-to-trench in US English:

trench-to-trench

adjective

  • Designating fighting between armies engaged in trench warfare.

Origin

Early 20th century; earliest use found in The Times of India. From trench + to + trench.

Pronunciation

trench-to-trench

/ˌtrɛn(t)ʃtəˈtrɛn(t)ʃ/