Dia melihat wayar terdedah.

Yes. Dia can mean either he or she in Malay.

Malay third-person singular pronouns usually do not show gender, so you often need context to know whether the person is male or female.

So:

• Dia melihat wayar terdedah. = He sees/saw an exposed wire.
• Dia melihat wayar terdedah. = She sees/saw an exposed wire.

Malay also often leaves out pronouns if the context is already clear, but here dia is stated explicitly.

Malay normally does not use articles the way English does.

So wayar can mean:

• a wire
• the wire
• just wire, depending on context

In this sentence, the exact English article has to be chosen from context. That is completely normal in Malay.

Melihat means to see, to look at, or to observe.

It comes from the root lihat (see/look). The prefix meN- forms an active verb. In this case:

• root: lihat
• verb: melihat

This is a very common pattern in Malay. The meN- prefix often marks an active verb used with an object.

Here:

• Dia = subject
• melihat = active verb
• wayar terdedah = object phrase

Because Malay adjectives usually come after the noun they describe.

So:

• wayar terdedah = exposed wire
• literally: wire exposed

This is one of the most noticeable differences from English word order.

Other similar examples:

• rumah besar = big house
• kereta merah = red car
• pintu terbuka = open door

Here terdedah means exposed, uncovered, or left open/visible, depending on context.

With wayar, it usually suggests that the wire is exposed and potentially unsafe, like an electrical wire with no proper covering.

So wayar terdedah naturally means something like:

• an exposed wire
• a bare wire

Not exactly.

The prefix ter- can do several things in Malay, and that can be confusing for learners. In terdedah, it often gives a state or condition meaning, so the word functions like an adjective: exposed.

So in this sentence, terdedah is best understood as describing the condition of the wire, not as a full passive verb.

Compare the idea:

• wayar terdedah = the wire is exposed / exposed wire

So although ter- can sometimes have other meanings, here it is most useful to treat terdedah as a descriptive word.

Any of those are possible depending on context.

Malay verbs do not usually change form for tense the way English verbs do. So melihat itself does not tell you whether the action is present, past, or ongoing.

Dia melihat wayar terdedah could mean:

• He sees an exposed wire
• She saw an exposed wire
• He is looking at an exposed wire

Context, time words, or the surrounding conversation usually make the time clear.

For example:

• Semalam dia melihat wayar terdedah. = Yesterday he/she saw an exposed wire.
• Sekarang dia melihat wayar terdedah. = Now he/she sees/is looking at an exposed wire.

Because Malay does not need a linking word there.

In English, you might think of wire that is exposed, but in Malay a noun can often be followed directly by a describing word:

• wayar terdedah = exposed wire

If you want, you can make the relationship more explicit with yang:

• Dia melihat wayar yang terdedah.

This also means He/She sees an exposed wire.

The version without yang is shorter and very natural. The version with yang can sound a bit more explicit or formal, depending on context.

These words are related, but they are not used in exactly the same way.

• melihat = to see / to look at
  More neutral or formal.
• nampak = to be visible / to see / to notice
  Often about something coming into sight or being noticed.
• tengok = to look / watch
  Very common in everyday speech.

So this sentence with melihat is correct and natural, but it may sound a bit more standard or formal than casual spoken Malay.

Possible alternatives:

• Dia nampak wayar terdedah. = He/She noticed an exposed wire.
• Dia tengok wayar terdedah. = He/She looked at an exposed wire.

The exact best choice depends on what nuance you want.

Not in this sentence.

In Dia melihat wayar terdedah:

• Dia is the subject
• melihat is the verb
• wayar terdedah is the object

The word order strongly suggests this. Malay basic word order is usually Subject–Verb–Object, just like English in a simple sentence.

So the sentence structure is:

• Dia = He/She
• melihat = sees/saw
• wayar terdedah = an exposed wire

A simple learner-friendly pronunciation guide would be:

Dia melihat wayar terdedah
DEE-yah muh-LEE-hat WAH-yar tuhr-DUH-dah

A few notes:

• dia has two clear syllables: di-a
• melihat is me-li-hat
• wayar is usually pronounced roughly wa-yar
• terdedah is ter-de-dah

Malay pronunciation is generally more regular than English spelling, so once you learn the sound system, it becomes quite predictable.