kaigi no enki wo douryou ni tutaemasita.

The sentence breaks down like this:

• 会議 = meeting
• の = links 会議 to 延期, like of
• 延期 = postponement
• を = marks the thing being conveyed
• 同僚 = colleague / coworker
• に = marks the person who receives the information
• 伝えました = conveyed / told

So the structure is:

[thing conveyed] を [person told] に 伝えました

In this sentence, the thing conveyed is 会議の延期.

の connects two nouns.

Here, 会議の延期 literally means the meeting's postponement or more naturally the postponement of the meeting.

This is a very common pattern in Japanese:

• 映画の説明 = explanation of the movie
• 旅行の予定 = travel plans
• 会議の延期 = postponement of the meeting

So の is not possession only; it often links nouns in a broad A-of-B relationship.

Because 会議の延期 is the content of what was conveyed.

The verb 伝える often takes:

• the information/message with を
• the receiver with に

So:

• 予定を伝える = convey the schedule
• 結果を伝える = tell the result
• 会議の延期を伝える = tell someone about the postponement of the meeting

Even though English might say tell someone that the meeting was postponed, Japanese often uses a noun phrase like 会議の延期 as the object.

に marks the target or recipient of the action.

With 伝える, the person who receives the information is usually marked by に:

• 先生に伝えました = I told the teacher
• 友達に伝えました = I told my friend
• 同僚に伝えました = I told my colleague

So 同僚に means to my colleague or to a colleague.

Japanese often omits the subject when it is clear from context.

So 会議の延期を同僚に伝えました naturally implies something like:

• I told my colleague about the meeting's postponement
• or (Someone) informed a colleague of the meeting postponement

In many everyday situations, I is understood and does not need to be said.

If you wanted to include it, you could say:

• 私は会議の延期を同僚に伝えました。

But in normal conversation, leaving out 私は is very common.

伝えました is the polite past form of 伝える.

It means the act of informing already happened:

• 伝えます = will tell / tell
• 伝えました = told / informed

Japanese past tense here does not always feel as sharply time-specific as English past tense. It simply presents the action as completed.

The dictionary form is 伝える.

It is an ichidan verb. The polite past form is made like this:

• 伝える
• stem: 伝え
• polite non-past: 伝えます
• polite past: 伝えました

So:

• 伝える = to convey, to tell
• 伝えます = tell / will tell
• 伝えました = told

By itself, 同僚 does not explicitly show my, the, or a.

Depending on context, it could mean:

• my colleague
• a colleague
• the colleague

Japanese often leaves that kind of detail to context.

So 同僚に伝えました could be understood as:

• I told my colleague
• I told a colleague
• I told the colleague

Yes. A very natural alternative is:

• 会議が延期になったことを同僚に伝えました。

This means something like I told my colleague that the meeting had been postponed.

The difference is:

• 会議の延期を伝えました = more compact, noun-based, a bit formal/businesslike
• 会議が延期になったことを伝えました = more clause-based, closer to an English that... sentence

Both are correct.

Yes, it is polite because it uses 伝えました.

This level is common in:

• workplace Japanese
• speaking politely to others
• written reports or messages

A less formal version would be:

• 会議の延期を同僚に伝えた。

That sounds plain/casual.

Because the sentence includes 同僚 and sounds work-related, the polite form fits very well.

Not exactly.

• 言う = to say
• 伝える = to convey, communicate, pass on information

伝える focuses on delivering information to someone, often clearly and purposefully. It sounds especially natural for relaying news, decisions, instructions, or updates.

So in a workplace sentence like this, 伝える is more natural than simply 言う.

For example:

• 会議の延期を同僚に言いました = I said the meeting postponement to my colleague
  
  • understandable, but less natural
• 会議の延期を同僚に伝えました = I informed my colleague about the postponement of the meeting
  
  • natural and appropriate

The given order is very natural:

• 会議の延期を同僚に伝えました

Japanese word order is flexible as long as the particles stay attached correctly. For example, you could also say:

• 同僚に会議の延期を伝えました

This has essentially the same meaning.

In Japanese, particles such as を and に are what show the role of each part, so order is more flexible than in English. Still, the original sentence sounds smooth and standard.