The word "penial" is used to describe anything related to the penis. However, there are quite a few synonyms that can be used in place of this word, depending on the context. Some of the most commonly used synonyms include "phallic," "genital," "sexual," and "reproductive." Other synonyms that may be used in less scientific contexts include "manhood," "member," and "tool." While each of these words has its own connotations and might be more or less appropriate in different situations, they all refer to the same general concept of the male reproductive organ.