Underway

angelaufen

(in motion, in progress; being done or carried out)

eingeleitet

(in motion, in progress; being done or carried out)

im Gange

(in motion, in progress; being done or carried out)

laufend

(in motion, in progress; being done or carried out)

unterwegs

(in motion, in progress; being done or carried out)

U-Boot-Fahrt

(voyage, especially underwater)

Unterführung

(underground passage, tunnel)

Unterwasser-Reise

(voyage, especially underwater)