No entiendo el sentido.

In Spanish, the usual way to make a sentence negative is to put no directly before the conjugated verb.

• Entiendo = I understand
• No entiendo = I do not understand

This is much simpler than English, because Spanish does not need a separate helping verb like do.

Entiendo is the first-person singular present tense of entender, meaning I understand.

So:

• entender = to understand
• entiendo = I understand

The full sentence is literally:

• No entiendo el sentido = I do not understand the sense / meaning / point

Because entender is a stem-changing verb in the present tense.

The e in the stem changes to ie in most present-tense forms:

• yo entiendo
• tú entiendes
• él/ella entiende

But not in nosotros and vosotros:

• nosotros entendemos
• vosotros entendéis

This is a very common pattern in Spanish.

Spanish often leaves out subject pronouns when they are already clear from the verb form.

• entiendo already tells you the subject is I
• so yo is not necessary

You could say Yo no entiendo el sentido, but that usually adds emphasis, such as:

• I don’t understand the point

Without yo, the sentence sounds more neutral and natural in most contexts.

In Spanish, nouns often need an article where English might not use one.

So Spanish prefers:

• No entiendo el sentido

rather than:

• No entiendo sentido ❌

Here el sentido means the sense, the point, or the meaning of something specific that is already being discussed.

Here sentido means something like:

• sense
• meaning
• point

So the sentence can be understood as:

• I don’t understand the sense of it
• I don’t see the point
• I don’t understand the meaning

The exact English translation depends on context. Sentido is a flexible word in Spanish.

Yes, it is grammatically correct and natural, but the most natural choice depends on context.

For example:

• No entiendo el sentido de esto = I don’t understand the point of this
• Esto no tiene sentido = This doesn’t make sense
• No le veo el sentido = I don’t see the point of it

In everyday Spanish from Spain, people often prefer No le veo el sentido or Esto no tiene sentido when they mean That doesn’t make sense.

Both can mean to understand.

• entender is more common in everyday speech
• comprender can sound slightly more formal, careful, or complete

So:

• No entiendo el sentido = very normal
• No comprendo el sentido = also correct, but a bit more formal or bookish in some contexts

In Spain, entender is usually the more everyday verb.

Yes, but it is not exactly the same.

• el sentido = the sense, point, or overall meaning
• el significado = the literal meaning, especially of a word, phrase, or symbol

So if you are talking about a word or sentence, significado may be better:

• No entiendo el significado de esta palabra = I don’t understand the meaning of this word

If you mean the logic or point of something, sentido is often better:

• No entiendo el sentido de esta decisión = I don’t understand the point/sense of this decision

Yes. Sentido has several meanings in Spanish, including:

• sense as in meaning or logic
• sense as in one of the five senses
• direction in some contexts
• feeling or awareness in certain expressions

Examples:

• el sentido de la palabra = the meaning of the word
• el sentido del oído = the sense of hearing
• en sentido contrario = in the opposite direction

In No entiendo el sentido, the context normally tells you it means sense/point/meaning.

A rough pronunciation is:

no en-tee-EN-do el sen-TEE-do

A few useful notes:

• entiendo has the stress on -tien-
• sentido has the stress on -ti-
• the d in sentido is usually softer than English d
• in Spain, c and z have a th sound, but there is no c or z here, so that does not affect this sentence

A more approximate pronunciation guide is:

noh en-tyEN-doh el sen-THEE-doh

Not usually. No entiendo el sentido is more like I don’t understand the point / sense / meaning.

If you want to say I don’t understand what you mean, more natural options are:

• No entiendo lo que quieres decir
• No entiendo qué quieres decir

Those are much more common when talking directly to someone.

It is neutral. The sentence itself is neither especially formal nor especially informal.

What makes Spanish formal or informal more often is things like:

• choice of pronouns: tú vs usted
• choice of vocabulary
• tone and context

So No entiendo el sentido can work in many situations, but depending on context, a native speaker might choose a slightly different phrasing to sound more natural.