Similar words: feature, creature, get up, let up, cut up, put up, set up, sit up. Meaning: v. 1. finish eating all the food on one's plate or on the table 2. use up (resources or materials) 3. enclose or envelop completely, as if by swallowing.
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1 The great fish eat up the small. 
2 Come on,my boy,eat up!
3 Eat up! We've got to go out soon.
4 Be a good boy and eat up your vegetables.
5 Eat up! You'll be late for school.
6 Come on. Eat up your potatoes.
7 Big cars just eat up money.
8 Eat up your greens?there's a good boy.
9 Eat up your broccoli. It's good for you.
10 Come on,(www.Sentencedict.com) eat up your lunch.
11 Come on, eat up, there's a good girl.
12 Eat up your fish and don't be so finicky.
13 Eat up the fried cake before it gets cold.
14 The children had to eat up all their food.
15 Eat up your lunch.
16 It was greedy of them to eat up all the candy.
17 Eat up your greens.
18 I can't afford the vacation,[sentencedict.com] for it would eat up my savings.
19 Come on,children,eat up!
20 Non-energy saving light bulbs just eat up electricity.
21 This is not cheap: housing costs eat up 44% of a typical wage-earner's income, as opposed to 14% in the 1950s.
22 Then they will sit straight and eat up all their nourishing gilt-edged stock.
23 Come on, boys -- eat up your supper and get to bed.
24 That salmon was very expensive so make sure you eat up every bit.
25 We have tiny apartments and kids and computers that eat up our spare time and money, for goodness' sakes.
26 A full business suite such as Microsoft Office can eat up 120 megabytes of space or more.
27 For the poorly paid, the twelve-cent round-trip fare could eat up 10 percent or more of their wages.
28 Next, the king told Simpleton to find a man who could eat up the biggest loaf of bread in the kingdom.
29 Multimedia titles, digital photography and other things your kids get into will eat up hard disk space.
30 Women owe it to the public health authorities to eat up their pills and stay healthy.