What’s in a word? A lot, if the word is “watershed” or any other concept from the field of coastal science. The need for words that convey complex concepts can be a challenge for deaf and hard of hearing students who rely on American Sign Language (ASL). American Sign Language does not have signs for many scientific concepts, which means bilingual users will have to borrow English words (via fingerspelling) to convey the concepts. Education programs at the Wells, Waquoit Bay, and Narragansett Bay Reserves are working to build ASL’s coastal science vocabulary—and create new learning opportunities for deaf and hard of hearing students—through the Watershed Stewardship in Action: Deaf Students on the Estuary project (WADE).