guitar
The Italian word 'chitarra' means 'guitar' in English. It is a noun and is used in the same way as in English. You can use it when referring to the musical instrument, such as in the sentence 'Io suono la chitarra', which means 'I play the guitar'.
I love playing the guitar
This sentence is a simple declaration of love for playing the guitar. 'Amo' is the first person form of 'amare', which is the verb 'to love, 'suonare' is the infinitive form of the verb 'to play', and 'la chitarra' is the Italian way of saying 'the guitar'.
The guitar is a versatile instrument
This sentence expresses an opinion about the guitar. Here 'La chitarra' refers to 'The guitar', 'è' which is the third person singular form of 'essere' means 'is', and 'uno strumento versatile' translates to a 'versatile instrument'. The sentence structure is similar to English.
I am learning to play the guitar
This sentence is in the present continuous tense, which is used to talk about actions currently in progress. 'Sto' is the first person singular present tense of 'stare', which in this context means 'am'. 'Imparando' is the present participle of the verb 'imparare', meaning 'learning', and 'a suonare la chitarra' means 'to play the guitar'.