The word 'sons' is often used to refer to male children or offspring. There are several other synonyms for this word that can be used to add variety and richness to your vocabulary. Some of the synonyms for 'sons' include 'heirs', 'offspring', 'descendants', 'progeny', 'young ones', and 'male issue'. Each of these words offers a slightly different shade of meaning or context, which can be useful in different situations. For instance, 'heirs' may be used to refer to sons in the context of inheritance or succession, while 'progeny' may have a more formal or dignified tone.