Como dizer "evasão escolar" em inglês

Vc pode dizer:

School dropout

"O Brasil é o terceiro país com o maior índice de evasão escolar do mundo"
Brazil is country that comes the third place, when it comes to school dropout rate.
Brazil appears in the third place, of the ranking of the top school dropout rate list.
Brazil appears in the third place, in the ranking of the top school dropout rates in the world.



And others. Feel free to polish the sentences further.

Truancy
[Noun]

Meaning: the action of staying away from school without good reason; (chronic) absenteeism.
Significado: o ato de ausentar-se do ensino sem razão aparente; absenteísmo (evasão; ausência).

1. Ociosidade.
2. Vadiagem.
3. Evasão escolar [termo acadêmico].
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Truant
[Adjective]
>> To be truant (AmE) = faltar à aula; estar ausente.

To play hooky
[Idiom] (AmE)
>> Matar aula.
>> Cancelar / não comparecer a um compromisso [propositalmente].
>> Enrolar [sentido figurado] = desperdiçar tempo; aproveitar o tempo para fazer algo trivial.
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Exemplos:

1. He had a history of truancy and expulsion from school.
>> Ele tinha um histórico de evasão e expulsão da escola.

2. Brazil is the third country with the highest (chronic) absenteeism / truancy rate in the world.
>> O Brasil é o terceiro país com o maior índice de evasão escolar do mundo.

REFERENCES:

(1) Farlex Dictionary of Idioms. 2015.
(2) Pearson Education. Longman Dictionary. 2nd ed. 2009.
(3) BAKER, Myriam L.; SIGMON, Jane Nady; NUGENT, M. Elaine. Truancy Reduction: Keeping Students in School. Juvenile Justice Bulletin.. Department of Justice, Washington, DC. Office of Juvenile Justice and Delinquency Prevention. 2001.
(4) MARTIN, Hannah. National decline in the number of students attending school. June 19th, 2017.
(5) JACOB, Brian A.; LOVETT, Kelly. Chronic absenteeism: an old problem in search of new answers. Brookings. Washington, DC. July 27th, 2017.