akibin wo susugimasu.

It is read あきびん.

• 空き = あき meaning empty in this kind of compound
• 瓶 = びん meaning bottle

So 空き瓶 means empty bottle.

A useful note: 瓶 is often read びん in everyday words, even though kanji readings can be more complicated in dictionaries.

空き瓶 is the common everyday way to say empty bottle.

Here, 空き works like a noun-like modifier meaning an empty one / something empty. Japanese often uses this kind of form in common compounds:

• 空き家 = vacant house
• 空き缶 = empty can
• 空き瓶 = empty bottle

So this is a natural vocabulary item you should learn as a set: あきびん.

を marks the direct object of the verb.

In 空き瓶をすすぎます, the thing being rinsed is 空き瓶, so を shows that the empty bottle is what the action is happening to.

Pattern:

• X を すすぎます = rinse X

So:

• 空き瓶をすすぎます = (someone) rinses the empty bottle

In Japanese, the subject is very often omitted when it is obvious from context.

So 空き瓶をすすぎます could mean:

• I rinse the empty bottle
• You rinse the empty bottle
• We rinse the empty bottle
• or even a general instruction like Rinse the empty bottle

Japanese usually leaves that unstated unless it needs to be clarified.

The dictionary form is すすぐ.

This is a -ます form:

• dictionary form: すすぐ
• polite form: すすぎます

This verb means to rinse.

A few related forms:

• すすがない = do not rinse
• すすいだ = rinsed
• すすいで = rinse and..., rinsing...
• すすぎました = rinsed, in polite past

Because すすぐ is a godan verb ending in -ぐ.

When you change it to the polite -ます form, the final ぐ changes to its i-stem form ぎ:

• すすぐ → すすぎます

This is a standard pattern:

• 泳ぐ → 泳ぎます
• 急ぐ → 急ぎます
• 脱ぐ → 脱ぎます

So すすぐ → すすぎます follows normal conjugation rules.

Not exactly.

すすぐ means to rinse—usually with water, often after washing or to remove soap, dirt, or residue.

Compare:

• 洗う（あらう） = to wash
• すすぐ = to rinse

So if you wash dishes with soap, then run water over them afterward, that final step is すすぐ.

With 空き瓶をすすぎます, the image is specifically rinsing out an empty bottle, not thoroughly washing it in a general sense.

Because すすぎます is the verb, and Japanese sentences often end with the verb.

The basic structure here is:

• 空き瓶 = object
• を = object marker
• すすぎます = verb

Japanese usually follows subject-topic + object + verb order, with the verb at the end.

So this sentence is complete as it is.

It can be either, depending on context.

Japanese -ます non-past forms often cover both present and future meanings.

So 空き瓶をすすぎます can mean:

• I rinse empty bottles / I rinse the empty bottle
• I will rinse the empty bottle

Context tells you which one is intended.

Those spaces are usually just for learners.

Normal Japanese writing would usually be:

空き瓶をすすぎます。

Japanese does not normally use spaces between words the way English does. Textbooks and beginner materials sometimes add spaces to make the sentence easier to read.

No—here it naturally means empty bottle.

Even though Japanese words can sometimes have broader meanings depending on context, 空き瓶 is a standard everyday word for a bottle with nothing in it.

So this is best understood simply as:

• empty bottle

not something unusual or figurative.

It is useful, but many learners first meet bottle words as vocabulary items rather than as a standalone kanji study point.

For example, you may see:

• 瓶 = bottle
• 空き瓶 = empty bottle
• 花瓶（かびん） = flower vase

So it is helpful to recognize 瓶, but at first it is perfectly fine to memorize 空き瓶（あきびん） as one word.