Sentence:  We know that many male City employees still go to lapdancing clubs for a fun <WSD>night out</WSD>. We know City organisations have struggled in their vaunted attempts to get more women on boards. 
Meaning of the word marked with <WSD> tags:  Spending the evening away from one's usual residence. The phrase typically implies going to a restaurant, going to watch entertainment, or other types of urban nightlife.