贺 (hè) is a bound form (b.f.) — it cannot stand alone as a word. You'll find it as the second syllable in compounds like 祝贺 (zhùhè, 'to congratulate'), 贺卡 (hèkǎ, 'greeting card'), and 贺电 (hèdiàn, 'congratulatory telegram'). This row covers only the congratulatory sense; the character also serves as a surname (贺), but that noun usage does not fit the bound-form POS and must be handled by a separate entry.