Can somebody elaborate on 'break-in', 'break', and 'breakdown'?

[Lynsey]

English Language Tests, Intermediate level

ESL/EFL Test #165 "Phrasal Verbs (A to B)", question 9

Kathy felt a little uneasy when she found out her neighbours had a ..........

(a) break-in
(b) breakout
(c) break

English Language Tests, Intermediate level

ESL/EFL Test #165 "Phrasal Verbs (A to B)", answer 9

Kathy felt a little uneasy when she found out her neighbours had a break-in.

Correct answer: (a) break-in

Your answer was: incorrect
Kathy felt a little uneasy when she found out her neighbours had a break.
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can somebody elaborate on "break-in", "break", and "breakdown"?

Lynsey

[Conchita]

Please have a look at these dictionary definitions:

http://dictionary.cambridge.org/results.asp?searchword=break&x=0&y=0

[Nenad11]

Does it mean that the house of her neihgbour was robbed?

[Our Tort System]

Yes, it does.
The house was broken into
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What do I think of the pie?!
Goodness gracious, its delicious!
That's what I think of the pie!