| 笃 | [ dǔ ] serious (illness), sincere, true |
| 笃信 | [ dǔ xìn ] to believe firmly, devout in one's faith |
| 笃信好学 | [ dǔ xìn haò xué ] sincere belief and diligent study |
| 笃厚 | [ dǔ hoù ] honest and generous, magnanimous |
| 笃学 | [ dǔ xué ] studious, diligent in study |
| 笃守 | [ dǔ shoǔ ] to comply faithfully, sincerely abiding by |
| 笃定 | [ dǔ dìng ] certain, confident (of some outcome), calm and unhurried |
| 笃实 | [ dǔ shí ] loyal, sincere, sound |
| 笃专 | [ dǔ zhuān ] with undivided attention |
| 笃志 | [ dǔ zhì ] steadfast, with single-minded devotion |
| 笃爱 | [ dǔ aì ] to love deeply, devoted to sb |
| 笃挚 | [ dǔ zhì ] sincere (in friendship), cordial |
| 笃病 | [ dǔ bìng ] seriously ill, critical |
| 笃行 | [ dǔ xíng ] to carry out (obligation) conscientiously, to behave sincerely |
| ⇒ 危笃 | [ weī dǔ ] deathly ill |
| ⇒ 本笃十六世 | [ běn dǔ shí liù shì ] Pope Benedict XVI, original name Joseph Alois Ratzinger (1927-), pope 2005-2013 |
| ⇒ 本笃会 | [ běn dǔ huì ] the Benedictines |
| ⇒ 杜笃玛 | [ dù dǔ mǎ ] Dodoma, capital of Tanzania (Tw) |
| ⇒ 病笃 | [ bìng dǔ ] critically ill, on one's deathbed |
| ⇒ 诚笃 | [ chéng dǔ ] honest, sincere and serious |