Masaya ang salubong sa bahay.

Ang marks the topic of the sentence. Here, ang salubong is the thing being talked about, and masaya describes it.

So the structure is basically:

• Masaya = joyful / happy
• ang salubong = the welcome / reception / greeting

A very literal gloss would be: Joyful is the welcome.

Filipino often puts the predicate first. In this sentence, masaya is the predicate, so it comes before the topic.

That makes Masaya ang salubong sa bahay a normal Filipino word order.

You can also say:

• Ang salubong sa bahay ay masaya.

This means the same thing, but it sounds a bit more formal or more deliberately structured.

Yes—from an English point of view, it may feel like is is missing, but in Filipino that is completely normal.

Filipino often does not use a separate present-tense linking verb in simple descriptive sentences.

So:

• Masaya ang salubong sa bahay.

works like:

• The welcome at the house is joyful.

without needing a separate word for is.

Here, salubong is a noun. It usually refers to a welcome, reception, or greeting of someone arriving.

Depending on context, it can suggest things like:

• meeting someone when they arrive
• welcoming someone home
• a reception prepared for someone

So it is not just any kind of happiness—it is specifically happiness connected with receiving or meeting someone.

Yes. Salubong is a root that can appear in verb forms too.

For example, with verb marking, it can mean things like:

• to meet someone
• to welcome someone
• to go out to receive someone

But in your sentence, it is functioning as a noun because it appears as ang salubong.

Sa bahay means at the house or at home, depending on context.

• sa = a location marker, often in / at / to
• bahay = house / home

So sa bahay tells you where the welcoming happens.

It is a location phrase, not the main subject of the sentence.

Because sa marks location, while ng usually marks possession, relation, or a non-topic participant.

• sa bahay = at the house / at home
• ng bahay = of the house

In this sentence, the idea is about where the welcome happens, so sa is the correct choice.

It can mean either, depending on context.

So sa bahay may be translated as:

• at the house
• at home
• in the house

The best English choice depends on the situation, not just the dictionary meaning of bahay.

Because Filipino adjectives do not change for gender or number the way adjectives do in some other languages.

So masaya stays the same whether the noun is:

• singular or plural
• masculine or feminine
• personal or non-personal

That makes Filipino simpler in this way than many European languages.

Yes, but that changes the structure.

• Masaya ang salubong sa bahay. = a full sentence meaning The welcome at the house is joyful.
• Masayang salubong sa bahay = a noun phrase meaning a joyful welcome at the house

The -ng in masayang links the adjective directly to the noun. So instead of saying something is joyful, you are simply describing the welcome as a joyful welcome.

Yes, it is understandable and grammatically fine.

That said, in real conversation, speakers might often add more context, such as whose house or who is being welcomed. For example:

• Masaya ang salubong sa bahay namin.
  The welcome at our house is joyful.

So the original sentence is natural as a complete statement, but it can sound a little general without added context.