The term 'weigh down' can be defined by a variety of words, such as OVERLOAD (8 letters), DEPRESS (7 letters), burden (6 letters), TAX (3 letters), LADE (4 letters), LOAD (4 letters), PRESS (5 letters), SADDEN (6 letters), OPPRESS (7 letters), ENCUMBER (8 letters), and OVERBURDEN (10 letters). All of these words refer to the idea of carrying a heavy weight or burden, either physically or emotionally. This can be seen in the definitions of the words, such as 'OVERLOAD' meaning to put too much of a burden on someone or something, and 'DEPRESS' meaning to make someone feel sad or discouraged.