The term 'be abundant or plentiful' can be expressed in four different ways: ABOUND (6 letters), AMPLE (5 letters), TEEM (4 letters), and RIFE (4 letters). ABOUND means to exist in large numbers or quantities, while AMPLE means to be more than enough. TEEM means to be full of something, and RIFE means to be filled with something. All four words indicate that there is an abundance of something, whether it be people, objects, or ideas.