忘年之交 wàngniánzhījiāo friendship between people of different ages Definitions Defs Origin Strokes Stroke Words Sentences Sents 忘年 wàngnián regardless of age Disregarding age differences, especially in the context of friendship (often used as a modifier for 忘年交 wàngniánjiāo or 忘年之交 wàngniánzhījiāo)之 zhī particle [possessive] Connects a describing word or phrase to the noun it describes, similar to 的 de but used in formal or literary writing.交 jiāo noun friendship Friendship; social or diplomatic relations