Kerugian itu besar.

Malay often leaves out the verb to be when linking a subject to an adjective or noun.

So:

• Kerugian itu besar = That loss / the loss is big
• literally, it is more like loss that big

This is completely normal in Malay. You do not need a separate word like is in simple sentences like this.

Itu usually means that, but in sentences like this it often works like a definite marker, similar to the in English.

So kerugian itu can mean:

• that loss
• the loss

Which one sounds best depends on context.

In natural Malay, itu is very often used when the speaker is referring to something already known, already mentioned, or clear from context.

In Malay, adjectives normally come after the noun they describe.

So:

• kerugian besar = a big loss
• kerugian itu besar = that loss is big

This is different from English, where adjectives usually come before the noun: big loss.

A useful pattern is:

• noun + adjective
  rumah besar = big house
  masalah besar = big problem

Yes. Kerugian is related to rugi.

• rugi usually means loss, to lose, or unprofitable
• kerugian is a noun meaning loss, damage, or financial loss, depending on context

This is a common Malay word-building pattern. The base word gets extra parts added to make a noun.

Here:

• base: rugi
• derived noun: kerugian

So a learner may notice that kerugian sounds more formal or noun-like than rugi.

Yes, but the meaning and feel change.

• Kerugian itu besar = the/that loss is big
• Kerugian besar usually sounds more like a big loss or big losses/loss in general, depending on context

So itu helps make the sentence more specific.

If you are talking about a particular loss already known in the conversation, Kerugian itu besar is more natural.

A simple approximate pronunciation is:

keh-roo-ghee-an ee-too buh-sar

A few helpful notes:

• r in Malay is usually trilled or tapped, not the English r
• g is always a hard g, like in go
• u is like oo in food
• a is usually like a in father
• stress is usually fairly even, not as strong as in English

So try to keep it smooth and even, without strongly stressing one word too much unless you want emphasis.

You technically might hear adalah in some formal contexts, but here it would usually sound unnatural or overly formal.

For normal everyday Malay, the natural sentence is:

• Kerugian itu besar

Malay usually does not use adalah before adjectives in ordinary sentences like this.

A learner-friendly rule is:

• for simple X is big/small/good/bad sentences, just say X + adjective
• do not insert adalah unless you have a specific formal reason and know the pattern well

Yes, besar is the normal and natural word here.

Besar means big, large, or sometimes great depending on context. It is commonly used with abstract things too, not just physical size.

So Malay can say:

• masalah besar = big problem
• kerugian besar = big loss
• pengaruh besar = great influence

In some contexts, other words might be possible, such as teruk if you mean serious/bad, but that changes the nuance. Besar focuses on the size or magnitude of the loss.

Malay nouns usually do not change form for singular and plural the way English nouns do.

So kerugian can sometimes mean:

• a loss
• losses
• loss as a general idea

The context tells you which is intended.

However, in Kerugian itu besar, the use of itu makes it sound like a specific loss, or a specific amount/category of loss already known from the context.

You can add an intensifier before the adjective:

• Kerugian itu sangat besar = The loss was very big / very large
• Kerugian itu amat besar = more formal very big
• Kerugian itu terlalu besar = too big or excessively big, which is a different meaning

So if you just want very, sangat is the safest and most common choice.

It is basically neutral and natural.

• kerugian is a normal standard Malay word
• itu and besar are also standard and common
• the whole sentence works in both speech and writing

It would fit well in everyday conversation, news, business discussion, or written explanation, depending on context.