The term "boatman woman" may not be a commonly used phrase in everyday language, but there are certainly synonyms that can be used to describe a woman who works on a boat. One option could be "seafarer," which broadly encompasses anyone who works on a ship or boat. Another term may be "mariner," which specifically refers to someone who navigates or manages a vessel. Alternatively, "sailor" could also be used, although this term typically implies that the woman in question is part of a crew rather than an individual boat operator. Other possibilities include "riverboat captain" or "canal worker." Ultimately, the specific synonym used will depend on the context and type of watercraft involved.