einige
some / several
Indicates an indefinite but not very large number of people or things.
Einige Schüler hatten ihre Hausaufgaben vergessen.
Some students had forgotten their homework.

some / several
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some / several
Indicates an indefinite but not very large number of people or things.
Einige Schüler hatten ihre Hausaufgaben vergessen.
Some students had forgotten their homework.

'Einige' (some/several) behaves like an adjective and must always be declined. The ending adapts to the gender, number, and case of the noun it refers to.
Ich habe mit einigen Experten über das Problem gesprochen.
I spoke with several experts about the problem.
In the plural, 'einige' (some/several) means a small number of countable things or people. In the singular, it is used with uncountable nouns like 'Zeit' (time) or 'Mühe' (effort) and means 'a certain amount'.
Einige Autos parkten am Straßenrand.
Some cars were parked along the roadside.
The word 'einige' (some/several) is frequently used in written language and in more formal contexts. It often sounds a bit more elevated.
Die Studie zog einige wichtige Schlussfolgerungen.
The study drew several important conclusions.
something / somewhat
'etwas' and 'einige' both talk about something indefinite. 'etwas' is used for an unspecified thing or for a small amount, often with things you do not count, such as water, time, or money. 'einige' is mostly used for several countable people or things, so in the plural: 'einige Fragen' (some questions), 'einige Gäste' (some guests). They can be confused because neither says exactly how much is meant. As a simple guide: for one thing or a small amount, 'etwas' often fits; for several individual things, 'einige' often fits.

Vor dem Termin schreibt die Assistentin einige wichtige Fragen auf.
Before the appointment, the assistant writes down some important questions.
Hast du heute noch etwas Zeit für einen kurzen Anruf?
Do you still have some time today for a quick call?