This is an Arabic word. Proper Pashto words for 'reason' are:
کبل
توسن
دک
لاسوند

Illat means reason for being bad.
Illat also means , Defect. They say , " Gran be-qeemata na vee, ao arzaan be-illata na vee." ( dear are worth their price and cheap are not without defect)

میڼځل meenzal = to wash
ګارډرونه gaardaruna = beams
هندوانې hendwaane = watermelons
ګوڼ goonh = bill (money/note)
غوڅول ghutsawal = to cut
سوالګر sawaalgar = begger
سوک sook = fist
څلی tsaley = towel
ښکر khkar = antler
لمونځ lmoonz = prayer
ګاونډي gaawandi = neighbour
سپینول speenawal = to peel
ګروپ groop = light bulb
پلورنځی ploranzey = shop
پلورونکی plorunkey = shopkeeper

I'll add some more soon, inshAllah.

That was very helpful. Please drop me a message when you add more.

بلول balawal = to turn on, to light
غوړول ghwarawal = to spread out
خېژول khezhawal = to lift up
لټول lattawal = to look for
غورزول ghorzawal = to throw
درېدل daredal = to stand, to stop
څملاستل tsamlaastal = to lie down
پاڅېدل paatsedal = to get up
ویښېدل wikhedal = to wake up
شنه کېدل shna kedal = to grow
وچېدل wachedal = to dry
بلنه ورکول balana warkawal = to invite

خزلې khazale = garbage
کلېنر klenar = conductor (like a bus conductor)
مرسته کوونکی mrasta kawunkey = helper

These are some words which look and sound similar, but mean different things:

غوټه ghwatta = knot
غوټه ghotta = a dip
غوټۍ ghuttay = bud
غټه ghatta = big (feminine)
ګټ gatt = big rock
ګټل gattal = to win
ګوته gwata = finger, ring, thumb

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What is the word for tease and please use in a sentence?

I.E. Do not tease your brother.

Hela da chay

TEASE (AZABWAL)

Do not tease ur brothr

Khpal Ror ma pa Azaba wa.......

Please explain the meaning of kafghan and use it in a sentence please. I have an idea of the meaning, but need someone to be more clear for me. Khudedey ubakha.