Sentence:  He was perhaps a trifle tipsy , having been long at sea where drinking is not permitted , and consequently out of practice ; he wore a brown tweed sports jacket obviously tailored in Hong Kong , and he <WSD>was</WSD> of an age that marked him as a lieutenant . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)