唁 (w)

(yàn) to extend condolences

唁信 (w)

(yànxìn) a letter of condolence

唁函 (w)

(yànhán) a message of condolence

唁劳 (w)

(yànlào) to offer condolences

唁电 (w)

(yàndiàn) a telegram of condolence