Synonym: beginning, commencement, daybreak, outset, start, sunrise. Antonym: dusk. Similar words: at dawn, far and away, lawn, pawn, spawn, fawning. Meaning: [dɔːn] 
n. 1. the first light of day 2. the earliest period 3. an opening time period. v. 1. become clear or enter one's consciousness or emotions 2. appear or develop 3. become light.
n. 1. the first light of day 2. the earliest period 3. an opening time period. v. 1. become clear or enter one's consciousness or emotions 2. appear or develop 3. become light. 
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31 The enemy troops moved in on the city and began to attack at dawn.
32 cocks crow at dawn.
33 We got the order to saddle up just after dawn.
34 At dawn we broke through the barbed wire entanglements under the city wall.
35 The crowing of the cock is a harbinger of dawn.
36 In the east we could see the first faint glimmer of dawn.
37 You are the first ray of sunshine at every dawn.
38 The area was inhabited long before the dawn of recorded history .
39 The plane took off,(www.Sentencedict.com) leaving London behind in a blue-grey dawn.
40 Dawn was breaking when they finally left.
41 The demonstration lasted from dawn till dusk.
42 Enemy troops struck just before dawn.
43 We will encounter the enemy at dawn.
44 They were waiting for the day to dawn.
45 Did you hear the cock crow at dawn?
46 Soldiers stormed into the city at dawn.
47 They continued the search as dawn broke.
48 The ceasefire turned out to be another false dawn.
49 At dawn, the breach was closed at last.
50 Dawn was breaking by the time we arrived home.
51 It began to dawn that something was wrong.
52 They got the soldiers up well before dawn.
53 At dawn the army attacked the town.
54 They set forth at dawn.
55 She routed up her husband before dawn.
56 Paul talked unceasingly from dawn to dusk.
57 I've been on the go from dawn to dusk.
58 We were up at the crack of dawn.
59 We left at the break of dawn.
60 He is to be shot at dawn.