entrenchment vs intrenchment

entrenchment and intrenchment both are nouns.

Word	Noun	Adjective	Verb	Adverb
entrenchment	Yes	No	No	No
intrenchment	Yes	No	No	No

As nouns, entrenchment and intrenchment are synonyms defined as:

entrenchment and intrenchment: an entrenched fortification; a position protected by trenches

entrenchment (noun)	intrenchment (noun)
an entrenched fortification; a position protected by trenches	an entrenched fortification; a position protected by trenches