Demonstratives

هذا (m) and هذه (f) mean 'this'.

Distance	Masculine	Feminine
Near (this)	هذا (haadha)	هذه (haadhihi)
Far (that)	ذلك (dhaalika)	تلك (tilka)

هذا كِتاب

haadha kitaab

This is a book

📝 Masculine 'this'

هذه سَيّارة

haadhihi sayyaara

This is a car

📝 Feminine 'this'

ذلك (m) and تلك (f) mean 'that'.

ذلك رَجُل

dhaalika rajul

That is a man

📝 Masculine 'that'

تلك مَدينة

tilka madiina

That is a city

📝 Feminine 'that'

Followed by a noun with ال, it means 'this/that (noun)'.

هذا الكِتاب

haadha al-kitaab

this book

📝 Note the ال on the noun

هذه المَدينة

haadhihi al-madiina

this city

📝 Demonstrative + definite noun