"Abience" is a relatively uncommon word, often associated with a quiet and tranquil atmosphere. Although there are not many direct synonyms for "abience", there are several terms that can convey a similar meaning. One possible alternative is "serenity", which denotes a state of calmness and peacefulness. Another synonym could be "tranquility", which suggests a sense of quiet and stillness. "Harmony" is yet another word that can encapsulate the harmonious and balanced ambiance of a place. Additionally, "calmness", "peacefulness", and "quietude" are all suitable synonyms that emphasize a sense of peacefulness and tranquility. Overall, these words can be used interchangeably with "abience" to describe a peaceful and soothing atmosphere.