名詞 decree:

1. a legally binding command or decision entered on the court record (as if issued by a court or judge)
   同義詞：edict, fiat, order, rescript

動詞 decree:

1. issue a decree
2. decide with authority
   同義詞：rule

1. This decree has the force of law behind it.
   這一裁決有法律的力量作後盾。
2. An authoritative order or decree; an edict.
   布告通令權(quán)威的命令或法令; 權(quán)令
3. By virtue of this act, decree, bulletin, or document; by this means.
   以此，特此依據(jù)這條法令、政令、公告或文件; 以此種方法
4. The dictator decreed that his birthday would be a public holiday.
   該獨裁者發(fā)布命令，將其生日定為公眾假期。

de.cree

n.（名詞）
An authoritative order having the force of law.
法令，政令；敕令：具有法律威力的官方命令
Law The judgment of a court of equity, admiralty, probate, or divorce.
【法律】 判決；裁定：指衡平法庭，海事法庭，遺囑檢驗法庭或離婚法庭的裁決
Roman Catholic Church
【羅馬天主教】
A doctrinal or disciplinary act of an ecumenical council.
教令：全基督教會議的教義或紀律法令
An administrative act applying or interpreting articles of canon law.
教令：實施或解釋教會法律條文的管理法案
v.（動詞）
de.creed,de.cree.ing,de.crees
v.tr.（及物動詞）
To ordain, establish, or decide by decree.See Synonyms at dictate
通過法令來命令、建立或決定命令參見 dictate
v.intr.（不及物動詞）
To issue a decree.
頒布一項法令

來源：
Middle English decre
中古英語 decre
from Old French decret
源自 古法語 decret
from Latin dôcrôtum [principle, decision] [from neuter past participle of] dôcernere [to decide]
源自 拉丁語 dôcrôtum [原則，決定] [] 源自dôcernere的中性過去分詞 [決定]
dô- [de-]
dô- [前綴，表.除去.]
cernere [to sift] * see krei-
cernere [篩] *參見 krei-

【引伸】
decree.able
adj.（形容詞）
decre.er
n.（名詞）