proclaim

announce, declare, proclaim, pronounce, advertise, broadcast, publish

这些动词均含“宣布，公开”之意。
announce: 多指首次宣布大家感兴趣或可满足大家好奇心的事情。
declare: 侧重正式就某事清楚明白地宣布。
proclaim: 指官方宣布重大事件或施政方针，语体比announce正式。
pronounce: 词义与announce, declare接近，但较多用于指法律判决方面的宣布。
advertise: 指通过文字和图像资料等的反复宣传而引起公众的注意，有时隐含令人不快或言过其实的意味。
broadcast: 专指利用广播或电视传播消息或发表见解。
publish: 专指通过报刊或其它媒介向公众公布事情。

动词 proclaim:

1. declare formally; declare someone to be something; of titles
2. state or announce
   同义词：exclaim, promulgate
3. affirm or declare as an attribute or quality of
   同义词：predicate
4. praise, glorify, or honor
   同义词：laud, extol, exalt, glorify

1. The act of proclaiming or the condition of being proclaimed.
   公布，宣布公布的行为或被公布的状况
2. The president proclaimed that a new currency would be issued.
   总统宣布将发行新货币。
3. His accent proclaimed that he was an American.
   他的口音表明他是一个美国人。

pro.claim

v.tr.（及物动词）
pro.claimed,pro.claim.ing,pro.claims
To announce officially and publicly; declare.See Synonyms at announce
宣告：正式且公开地宣布；声明参见 announce
To indicate conspicuously; make plain:
表明：清楚地显示出；表明：
例句：
wearing a button that proclaimed my choice for president.
戴一枚徽章来表明我选谁作主席

To praise; extol.
赞扬；称颂

来源：
Middle English proclamen, proclaimen influenced by claimen [to claim]
中古英语 proclamen, proclaimen 受 claimen的影响 [宣布]
from Old French proclamer
源自 古法语 proclamer
from Latin prôcl3m3re
源自 拉丁语 prôcl3m3re
prô- [forward] * see pro-
prô- [向前] *参见 pro-
cl3m3re [to cry out] * see kel…- 2
cl3m3re [叫出，喊出] *参见 kel…- 2

【引伸】
proclaim.er
n.（名词）
proclam.ato.ry