Dreams dictionary: Trenches
Dreams dictionary: Interpretation 1
To see Trenches in your fantasy demonstrate that you are setting up some type of protection. You are being guarded about something and are drawing a line where you don't need others to cross. Make sense of what you are attempting to stow away.
Dreams dictionary: Interpretation 1
To see trenches in your dream indicate that you are putting up some form of defense. You are being defensive about something and are drawing a line where you do not want others to cross. Figure out what you are trying to hide.
Dreams dictionary: Miller Dream Interpretation
To see trenches in dreams, warns you of distant treachery. You will sustain loss if not careful in undertaking new enterprises, or associating with strangers. To see filled trenches, denotes many anxieties are gathering around you. See Ditch.