To find which word comes last in a dictionary, compare the words letter by letter.
Words:
All begin with be.
Compare the third letter:
beach → a
beneath → n
bend → n
bent → n
So beach comes first. Now compare the remaining three:
beneath → bene...
bend → bend...
bent → bent...
Compare the fourth letter:
beneath → e
bend → d
bent → t
Since t comes after e and d, bent comes last.
Answer: bent