fidelity

詳細解釋：

fi.del.i.ty

n.（名詞）
【複數】 fi.del.i.ties 縮寫 fid.
Faithfulness to obligations, duties, or observances.
忠誠，忠實：忠於職守、義務或責任
Exact correspondence with fact or with a given quality, condition, or event; accuracy.
逼真：與事實或給定的性質、狀態或事件完全一致；逼真
The degree to which an electronic system accurately reproduces the sound or image of its input signal.
保真度：指電子系統準確地重新產生接收到的聲音或圖象的程度

來源：
Middle English fidelite
中古英文 fidelite
from Old French
源自 古法文
from Latin fidôlit3s
源自 拉丁語 fidôlit3s
from fidôlis [faithful]
源自 fidôlis [忠實的]
from fidôs [faith] * see bheidh-
源自 fidôs [信任] *參見 bheidh-

<參考辭彙><同義詞>fidelity,allegiance,fealty,loyaltyThese nouns denote faithfulness, as to a person or a cause.
這些名詞指的是對一個人或一件事的忠誠。
Fidelity implies the unfailing fulfillment of one`s duties and obligations and strict adherence to vows or promises:
Fidelity 意為一絲不苟地履行自己的職責與義務，言而有信或忠於誓言：
例句：
fidelity to one`s spouse;
忠實於自己配偶；

例句：
fidelity to one`s word of honor.
愛惜自己的名譽。

Allegiance is faithfulness, as to a government or state to which one is subject, considered as a duty:
Allegiance 是指對自己的國家或政府忠心，被看作是一種義務：
例句：
.I know no South, no North, no East, no West, to which I owe any allegiance. . . . The Union, Sir, is my country. (Henry Clay).
.我不知道什麼東西南北，對這些我毫無職責可言…只有美國，先生，才是我的祖國. （亨利·克萊）。

Fealty, once applied to the obligation of a tenant or vassal to a feudal lord,now suggests faithfulness that one has pledged to uphold:
Fealty 曾用來指臣僕對封建主絕對順從、忠誠，現在指對自己支持的事物或人忠誠：
例句：
swore fealty to the laws and Constitution of the United States.
發誓絕對遵守和支持美利堅合眾國的法律及憲章。

Loyalty implies a steadfast and devoted attachment that is not easily turned aside:
Loyalty 意為不易動搖的、堅實不移的信條：
例句：
loyalty to an oath;
忠實於誓言；

例句：
loyalty to one`s family;
忠於自己的家庭；

例句：
party loyalty;
效忠於黨；

例句：
loyalty to an ideal.
忠於理想