Sentence:  In an interview, he even noted that he "dressed, acted and thought like a man" for years, but his coworkers continued to <WSD>gender</WSD> him as female (Shaver 1995, 2). 
Meaning of the word marked with <WSD> tags:  To assign a gender to (a person); to perceive as having a gender; to address using terms (pronouns, nouns, adjectives...) that express a certain gender.