In certain cases compound words and set phrases may be contracted into single characters. Some of these can be considered logograms, where characters represent whole words rather than syllable-morphemes, though these are generally instead considered ligatures or abbreviations (similar to scribal abbreviations, such as & for "et"), and as non-standard. These do see use, particularly in handwriting or decoration, but also in some cases in print. In Chinese, these ligatures are called hewen (), heshu () or hetizi (), and in the special case of combining two characters, these are known as "two-syllable Chinese characters" (, ).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What can be considered as set phrases?
single characters