Déjalo así.

Déjalo is made of two parts:

• deja = the tú affirmative command of dejar
• lo = a direct object pronoun meaning it or him, depending on context

So déjalo literally means leave it / leave him.

In Déjalo así, the full structure is:

• Déjalo = leave it
• así = like that / that way / as it is

The accent mark is there because a pronoun has been attached to the command.

Without the pronoun, you have:

• deja

When lo is added, you get:

• dejalo

But Spanish spelling rules would otherwise make the stress fall incorrectly, so it becomes:

• déjalo

The written accent keeps the stress on the first syllable: DÉ-ja-lo.

This is very common with affirmative commands plus attached pronouns.

Because in Spanish, affirmative commands usually attach object pronouns to the end of the verb.

So:

• Déjalo así. = correct

But in a negative command, the pronoun goes before the verb:

• No lo dejes así. = Don’t leave it like that.

This is a very important pattern:

• affirmative command → pronoun attached
• negative command → pronoun before the verb

Lo is a direct object pronoun. It can refer to:

• a masculine singular noun
• or sometimes a more general it/that idea

For example:

• el libro → Déjalo así. = Leave the book like that.
• eso → Déjalo así. = Leave that as it is.

In real conversation, lo often just means it, even if English does not make the gender obvious.

Yes. The pronoun changes depending on what is being referred to.

Examples:

• Déjala así. = Leave it/her like that.
• Déjalos así. = Leave them like that.
• Déjalas así. = Leave them like that.

So the ending changes to match the object:

• lo = masculine singular
• la = feminine singular
• los = masculine plural
• las = feminine plural

Así means like that, that way, or as it is.

It tells you the manner or state in which something should be left.

So Déjalo just means Leave it.

But Déjalo así means:

• Leave it like that.
• Leave it that way.
• Leave it as it is.

It often implies don’t change it.

Yes. Déjalo is the informal singular command, used with tú.

Formal and other versions would be:

• Déjelo así. = formal singular (usted)
• Dejadlo así. = informal plural in Spain (vosotros)
• Déjenlo así. = formal plural (ustedes)

In Spain, vosotros is common in everyday speech, so you may also hear dejadlo.

The negative version is:

• No lo dejes así.

Notice two changes:

1. The pronoun moves before the verb: lo dejes
2. The verb changes form: dejes instead of deja

That is because negative commands use the present subjunctive.

So:

• Déjalo así. = Leave it like that.
• No lo dejes así. = Don’t leave it like that.

A simple pronunciation guide is:

• DÉ-ha-lo ah-SÍ

More precisely in standard Spain Spanish:

• déjalo → /ˈde.xa.lo/
• así → /aˈsi/

A few key points:

• j in dejar is a strong throaty sound, not an English j
• the stress is on DÉ
• así is stressed on the last syllable: -sí

It can, depending on tone and context.

By itself, it is a normal everyday command, but commands can sound:

• neutral
• firm
• impatient
• reassuring

For example, it could mean:

• That’s fine, don’t change it
• Stop touching it
• Leave it alone
• Just keep it that way

If you want to sound softer, Spanish often adds words like:

• Déjalo así, por favor.
• Mejor déjalo así.
• Puedes dejarlo así.

Here it means leave, not let.

In Déjalo así, dejar means to leave something in a certain state.

Examples of this use:

• Déjalo abierto. = Leave it open.
• Déjalo aquí. = Leave it here.
• Déjalo así. = Leave it like that.

Dejar can also mean let, but that is a different use:

• Déjalo hablar. = Let him speak.

So the verb is the same, but the structure and meaning change with context.