妍 is a bound form (b.f.) meaning 'beautiful'. It cannot stand alone as a word; it must appear as part of a two-character compound, such as 妍丽 (yánlì, 'gorgeous'), 争妍 (zhēngyán, 'to vie in beauty'), or 妍美 (yánměi, 'beautiful and graceful'). You'll encounter it in literary or formal contexts.