Alat bantu dengar memperbaiki pendengaran Nenek.

Literally, it breaks down like this:

• alat = tool, device
• bantu = help, assist
• dengar = hear / hearing

As a whole, alat bantu dengar is the normal Indonesian expression for hearing aid.

Indonesian often builds compound expressions this way, so the literal sense is something like a device to help hearing.

Because Indonesian noun phrases usually put the main noun first and the modifiers after it.

So:

• alat bantu dengar = literally device help hear
• natural English translation = hearing aid

The head of the phrase is alat. The words after it describe what kind of device it is.

This is very common in Indonesian. Compare:

• rumah sakit = literally house sick = hospital
• kartu kredit = literally card credit = credit card

Here, memperbaiki means to improve, to fix, or to make better.

In this sentence, it means the hearing aid improves Grandma’s hearing.

It can also be used in other contexts for repairing or correcting something, for example:

• memperbaiki mobil = repair a car
• memperbaiki hubungan = improve a relationship

So the exact English translation depends on the object.

It is built from the root baik, which means good.

The form memperbaiki can be understood as:

• baik = good
• memper- ... -i = a verb-forming pattern that often means to make something become X, to improve, or to do X to something

So memperbaiki means roughly to make good, to improve, or to fix.

For a learner, the most useful thing is simply to recognize it as a common transitive verb that usually takes an object:

• memperbaiki pendengaran = improve hearing
• memperbaiki mesin = fix a machine

Because dengar and pendengaran are different kinds of words.

• dengar is usually a verb: to hear
• pendengaran is a noun: hearing, especially the sense or ability of hearing

So:

• Saya dengar suara itu. = I hear / heard that sound.
• Pendengaran Nenek = Grandma’s hearing

The form pendengaran is made from dengar with the noun-forming pattern peN- ... -an, which often creates nouns related to an action, process, or faculty.

In Indonesian, possession is often shown by putting the possessor after the noun.

So:

• pendengaran Nenek = Grandma’s hearing
• literally = hearing Grandma

This is a very common pattern:

• buku saya = my book
• rumah Ayu = Ayu’s house
• nama guru itu = that teacher’s name

There is no apostrophe like in English. Indonesian usually just places the owner after the thing owned.

Because kinship words in Indonesian are often capitalized when they are used like a name or a title for a specific family member, similar to English Mom, Dad, or Grandma.

So:

• Nenek = Grandma, used like a name/title
• nenek = grandmother, old woman, or a more general/common-noun use

In this sentence, the capital letter suggests it means Grandma as a specific person, not just a grandmother in general.

Because the normal Indonesian sentence order here is:

• Subject
  • Verb
    • Object

So in:

• Alat bantu dengar = subject
• memperbaiki = verb
• pendengaran Nenek = object

That gives:

The hearing aid improves Grandma’s hearing.

So Nenek is not the subject here. She is part of the object phrase pendengaran Nenek.

No. Indonesian does not normally use articles like English a/an/the.

So alat bantu dengar could mean:

• a hearing aid
• the hearing aid
• hearing aids in a generic sense

The exact meaning depends on context.

In this sentence, English might translate it as:

• A hearing aid improves Grandma’s hearing
• The hearing aid improves Grandma’s hearing
• Hearing aids improve Grandma’s hearing

The context tells you which one is most natural.

Indonesian verbs do not change form for tense the way English verbs do.

So memperbaiki by itself does not specifically mean:

• improves
• improved
• will improve

The time is usually understood from context, or made clear with extra words such as:

• sudah = already
• sedang = currently
• akan = will

Without any time marker, this sentence is most naturally understood as a present-time or general statement:

A/The hearing aid improves Grandma’s hearing.