Synonym: affirm, announce, assert, pronounce, say, state. Similar words: decline, middle-class, clay, deck, class, claim, a class, decent. Meaning: [dɪ'kleə] 
v. 1. state emphatically and authoritatively 2. announce publicly or officially 3. state firmly 4. declare to be 5. authorize payments of 6. designate (a trump suit or no-trump) with the final bid of a hand 7. make a declaration (of dutiable goods) to a customs official 8. proclaim one's support, sympathy, or opinion for or against.
v. 1. state emphatically and authoritatively 2. announce publicly or officially 3. state firmly 4. declare to be 5. authorize payments of 6. designate (a trump suit or no-trump) with the final bid of a hand 7. make a declaration (of dutiable goods) to a customs official 8. proclaim one's support, sympathy, or opinion for or against. 
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1, I declare, it was a very warm day!
2, Have you anything to declare?
3, Anything to declare? --No, I don't.
4, I declare this bridge open.
5, Do you have anything to declare?
6, Pale moonlight, I declare lonely and shadow.
7, Congress is vested with the power to declare war.
8, To declare war against the small island state looks like the action of a cowardly nation.
9, He dares to declare war on the dark people, the heart must be full of light.
10, The government may declare martial law in response to the latest violence in the region.
11, If you insist[sentencedict.com], we have to declare the meeting off.
12, I declare the meeting closed.
13, I declare you man and wife.
14, I declare this exhibition open .
15, You'd better declare the camera to the official.
16, Congress has the power to declare war .
17, They decided to declare Paris an open city.
18, Goods to declare - use the red channel.
19, I declare this festival open.
20, The government is ready to declare a permanent ceasefire.
21, I should, at this point,[http://sentencedict.com/declare.html] declare my interest.
22, It's too early to declare his efforts a success.
23, He should declare at customs.
24, You must declare all earnings to the tax office.
25, I hereby declare Mr Rogers elected.
26, If you have nothing to declare, go through the green channel.
27, You may have to declare that you have had an HIV test.
28, His lawyers are confident that the judges will declare Mr Stevens innocent.
29, She would willingly forgo a birthday treat if only her warring parents would declare a truce.
30, It is difficult to quantify an exact figure as firms are reluctant to declare their losses.
More similar words: decline, middle-class, clay, deck, class, claim, a class, decent, decide, decade, classic, decorum, proclaim, classify, decision, decrease, decorate, decrepit, decide on, classroom, classical, deceptive, clandestine, large, solar, collar, salary, flare up, decaffeinated, the working class.