笃守 Traditional form: 篤守 Pinyin (reading): dǔshǒu Definitions: to comply faithfully sincerely abiding by Characters: 笃 - deep, serious; genuine, sincere, true 守 - to defend, to guard, to protect; to conserve; to wait Traditional characters: 篤 - deep, serious; genuine, sincere, true 守 - to defend, to guard, to protect; to conserve; to wait