random verbs

علومی ماندن ?!

در هم ادغام کردن    means to combine and join things toghether, merge

وابسته شدن   means to become dependent to sth

به خون کشیدن  slaughter, massacre, exterminate, to kill people in large numbers

به کار رفتن = To get working?    it should be به کار بردن and means to use sth   

فرمانبرداری کردن = to obey?      correct

دومی گرفتن   it should be used in a full sentence to get the meaning

بازنویس کردن = to write about something?      to rewrite sth

تحصن کردن = refuge (I'm not sure)

به خود گرفتن = It has many meanings you should write it in a sentence

سر کشیدن = to inspect

به همه جا سر می کشید = he/she was inspecting everywhere.

به خود جذب کردن = to attract someone or something/absorb

به هم وصل کردن = to connect two or more things to each other

برگزار شدن = to be held, performed?  correct

فرقی کردن = to make a difference?   it should be فرق کردن which means to become different over a period of time

برانداختن = means to abolish, overthrow, destroy

نازش کردن = it should be نوازش کردن which means to touch a part of someone's body in a loving way, fondle, caress, stroke                 

ناز کردن = it can be a synonym for نوازش کردن but its informal, and also it means to deal with something playfully rather than seriously, coquette

پت پت کردن = it is used for the sound of a fire esp a candle or something

سر بر کردن = you should write it in a sentence

سر کردن = to put on the head, to spend time, to start doing an activity

به همه جا سر می کشید = It's a kind of idiom describing a nosy person who always too interested in what other people are doing and wanting to discover too much about them

به خود جذب کردن = to attract something or someone

به هم وصل کردن = to join together, to connect together

برگزار شدن = to be held

فرقی کردن = to make a difference

Hope this helps you. Feel free to ask any questions you have

Best wishes

برانداختن = to overthrow, ourturn

نوازش کردن = to caress, to pet

ناز کردن = to caress, to pet

پت پت کردن = When someone can't speak properly in front of others because of fear, stutter, surprise, etc. To stammer

سر بر کردن = I don't know what you were going to say

سر کردن = It's an idiom. Spending time with someone when he/she have no other choice

فرمانبرداری کردن = to obey

دومی گرفتن = I don't know what yoy were going to say

بازنویس کردن = to write again, re-write

تحصن کردن = to organize a strike, to stage/hold a sit-in, organize a work stoppage

به خود گرفتن = to take something personally

سر کشیدن = drink or eat something completely in one breath

او یک بطری آب را یک نفس سرکشید........> He drank 1 liter of bottled water in one breath