Breakdown of Con il telefono, hai tutto il mondo nella tasca.
il telefono
the phone
avere
to have
in
in / made of (material)
con
with
Questions & Answers about Con il telefono, hai tutto il mondo nella tasca.
How do we get the word nella?
Nella is an articulated preposition, meaning it combines a preposition with a definite article (a word for "the"). Here, the preposition in joins with la (because tasca is feminine singular). In + la merges to become nella (in the).
The English translation says "in the pocket", but wouldn't we normally say "in your pocket"?
Why is there an il between tutto and mondo?
When you use tutto to mean "the whole" or "all of the" before a noun, it must be followed by a definite article. So instead of just saying tutto mondo, you have to say tutto il mondo (literally "all the world").
Why isn't the word for "you" in this sentence?
In Italian, the verb itself usually tells you who is doing the action, so subject pronouns are often dropped. Hai is the "you" (informal singular) form of avere (to have). Adding the word tu before it isn't necessary!