insignia

名词 insignia:

1. a badge worn to show official position

1. The costume or insignia worn by the retainers of a feudal lord.
   装束封建主的随从所穿的服装或所戴标志
2. A device or emblem worn as an insignia of rank, office, or membership in an organization.
   徽章一种作为军衔、官衔或某一组织中会员的标志而佩带的图案或符号
3. Insignia, as of a state, an official, a family, or an organization.
   (如国家，官员，家庭或组织的)徽章
4. A medal, emblem, or insignia in the form of an upright post with a transverse piece near the top of it, or a modification thereto.
   十字勋章用接近顶部的地方横梁上的一根立柱的形状制成的勋章或徽章或由此加以装饰的饰物

in.sig.ni.a

n.（名词）
【复数】 insignia 或 in.sig.ni.as
A badge of office, rank, membership, or nationality; an emblem.
证章，识别符号：职位、等级、会员或国籍的证章；象征
A distinguishing sign.
标记：突出的记号

来源：
Latin onsignia [pl. of] onsigne [badge of office, mark] [from neuter of] onsignis [distinguished, marked]
拉丁语 onsignia [] onsigne的复数 [职位的证章，标记] [] 源自onsignis的中性词 [突出的，标记的]
in- [in] * see in- 2
in- [在里面] *参见 in-2
signum [sign] * see sek w-
signum [符号，记号] *参见 sek w-

Insignia in Latin is the plural form of insigne, but it has long been used in English as both a singular and a plural form:
Insignia 在拉丁语中是 insigne 的复数形式， 但是在英语中很长时间来一直既被用作单数又被用作复数形式：
例句：
The insignia was visible on the wingtip.
翼梢上的徽记清晰可见。

例句：
There are five insignia on various parts of the plane.
在飞机的不同部分有五个徽记。

From the singular use ofinsignia comes the plural insignias, which is also common in reputable writing.The Latin singularinsigne is rare and may strike some readers as pedantic.
从insignia 的单数用法衍生到复数用法 inisiguias ， 这种用法在规范的写作中也很常见。拉丁语的单数形式insigue 很罕见， 这可能会使一些读者认为是在卖弄学问