eonnineun mokgeoriboda jageun gwigeorireul deo jaju hae.

언니 means older sister, but it can also be used for an older female friend or acquaintance.

A key point: 언니 is normally used by a female speaker.

• A woman/girl says 언니 to an older sister or older female.
• A man/boy would usually say 누나 instead.

So in this sentence, the speaker is likely female, or at least the wording reflects a female speaker’s perspective.

는 is the topic marker.

So 언니는 means something like:

• as for my older sister
• when it comes to my older sister

This gives the sentence a topic/comment structure.

If you used 언니가, the feeling would be more like identifying or emphasizing the subject:

• It is my older sister who...
• My older sister is the one who...

In many everyday sentences, both can be possible, but 는 often sounds more natural when you are simply talking about someone as the topic.

보다 means than in comparisons.

So:

• 목걸이보다 = than a necklace / compared to a necklace

In this sentence, 보다 is part of the phrase:

• 목걸이보다 작은 귀걸이
• earrings that are smaller than a necklace

A very common comparison pattern is:

• A보다 B가 더 크다 = B is bigger than A

Here, that comparison idea is built into a noun-modifying phrase instead of ending the sentence directly.

Because 작다 is a descriptive verb/adjective in Korean, and when it modifies a noun, it changes form.

• dictionary form: 작다 = to be small
• noun-modifying form: 작은 = small

So:

• 작은 귀걸이 = small earrings

This is different from many action verbs, which often use -는 before a noun.

Compare:

• 먹는 사람 = the person who eats
• 작은 귀걸이 = small earrings

So 작은 is the correct modifier form here.

It describes 귀걸이.

In Korean, a modifier comes before the noun it describes. So in:

• 목걸이보다 작은 귀걸이

the noun being modified is the final noun, 귀걸이.

That whole phrase means:

• earrings that are smaller than a necklace

It does not mean that the necklace is small.

Because 귀걸이를 is the object of 해.

The whole object is:

• 목걸이보다 작은 귀걸이를

In other words, the thing being worn is the earrings.

So:

• 귀걸이를 해 = wear earrings

Even though English uses wear, Korean here uses 하다, and the accessory takes the object marker -을/를.

That’s a very common question.

Yes, 하다 often means to do, but with some accessories and appearance-related items, it can also mean to wear / have on / put on.

For example:

• 목걸이를 하다 = to wear a necklace
• 귀걸이를 하다 = to wear earrings
• 넥타이를 하다 = to wear a tie
• 화장을 하다 = to put on makeup / wear makeup

So in this sentence, 해 does not mean do in the usual sense. It means wears.

You may also hear other verbs for wearing depending on the item:

• 입다 for clothes
• 신다 for shoes
• 쓰다 for hats/glasses
• 끼다 for rings, gloves, sometimes earrings
• 하다 for certain accessories

With 귀걸이, both 하다 and 끼다 can be heard, but 하다 is very natural.

자주 means often.
더 means more.

So 더 자주 means:

• more often
• more frequently

A subtle point: 더 often implies a comparison, but Korean does not always state the thing being compared explicitly if it is clear from context.

So this sentence can mean something like:

• She wears earrings smaller than necklaces more often with the comparison understood from context.

If you only wanted to say often with no sense of comparison, you could just say 자주.

The sentence itself does not fully spell that out. Korean often leaves that kind of comparison implied.

Depending on context, 더 자주 해 could mean:

• more often than before
• more often than someone else
• more often than other accessories
• more often than she used to wear something else

So 더 needs context.

This is different from the 보다 phrase.

• 목걸이보다 explicitly gives a comparison: than a necklace
• 더 자주 has an unstated comparison

Those are two separate comparison ideas in the sentence.

Not exactly.

This sentence means that the earrings are smaller than a necklace:

• 목걸이보다 작은 귀걸이 = earrings smaller than a necklace

It does not mean:

• she wears earrings more often than necklaces

To say She wears earrings more often than necklaces, you would say:

• 언니는 목걸이보다 귀걸이를 더 자주 해.

Notice the difference:

• 목걸이보다 작은 귀걸이
  = earrings that are smaller than a necklace

• 목걸이보다 귀걸이를 더 자주 해
  = wears earrings more often than necklaces

This is a very important parsing point.

Korean word order is somewhat flexible, but not completely free.

What must stay together is the modifier relationship:

• 목걸이보다 작은 must stay before 귀걸이

So:

• 목걸이보다 작은 귀걸이를 is a unit

You can sometimes move adverbs like 더 자주 around a bit, but the most natural order is often:

• 언니는 목걸이보다 작은 귀걸이를 더 자주 해.

If you move things too much, the sentence may still be grammatical but feel less natural or harder to process.

Grammatically, yes.

Semantically, it can sound a little unusual out of context because earrings are normally already smaller than necklaces, so the comparison may feel unnecessary or oddly specific.

But it could still make sense in a context like:

• talking about jewelry size preferences
• comparing very large earrings with necklaces
• practicing Korean grammar patterns

So a learner should focus on the grammar here:

• topic marker 는
• comparison with 보다
• noun-modifying form 작은
• 하다 meaning wear
• 더 자주 with an implied comparison