Learn Turkish: Kimse aslan gibi cesur değil. - Nobody is brave like a lion.

In Turkish, gibi is a postposition. This means it works just like an English preposition (such as 'like' or 'with'), but it must come after the word it connects to. That is why 'like a lion' is written as aslan gibi.

Does the noun aslan need any special case endings before gibi?

No, regular nouns like aslan (lion) stay in their plain, dictionary form when used with gibi. You only need to add case endings when using personal pronouns, such as benim gibi for 'like me'.

Why is the word order aslan gibi cesur (lion like brave) instead of cesur aslan gibi?

In Turkish, phrases that describe an adjective come right before that adjective. The phrase aslan gibi (like a lion) describes exactly how brave someone is, so it must be placed directly before cesur (brave).

If kimse means 'nobody', why do we need to use the negative word değil?

Unlike English, Turkish requires a double negative when using words like kimse (nobody/anyone) or hiç (none/ever). To mean 'nobody is', you must always pair kimse with a negative word like değil (is not) or a verb with a negative suffix.