importance He's a man of importance in my opinion. Noun
separated Me and my best friend were in two separated groups. Verb
seldom He makes seldom visits to our house. Adverb
brilliant She is a brilliant student from our class. Adjective
similar Me and my brother have the similar type of pencils. Adjective
whether he seemed undecided whether to go or stay. Conjuction
strength Cycling can help you build up your strength. Noun 
teriffic There was a terrific bang while we were in our class. Adjective
naturally One of my friend has naturally curly hair. Adverb
attempted We attempted the experiment at home and it was really bad. Verb
previously Previously people believed the earth was flat. Adverb
arguing Why are you arguing with me? Verb