RELATIONSHIPa secret meeting, especially with someone you are having a romantic relationship with – often used humorously (秘密)约会;幽会〔常为幽默用法〕
Examples from the Corpus
assignation• Whatever he thought he was doing here, it doesn't look like an assignation, not with a woman anyway.• The mosaicspares none of the pertinent details of this ill-fatedassignation.• The place was all tawdrybars, dance-halls and flop-houses that were also houses of assignation.• Allegations and denials about country hideaways, romantic recordings and Princess Di's secret assignationsfly in all directions.• Would it now get about that Mrs Markham was a little peculiar or, worse still, that she had some assignation?