is there any suitable synonym for "same age" , I mean when 2 person for example are (have) same age (for instance both of them are 20 years old) what adjective can we use for them ?!

we can say : these 2 person are ................... (what ?)

and another question , what is a proper word for diffrences in age !

i mean what adjective can we use for 2 person that one of them is 23 years old $ one of them is 28 years old ?

we can say : these 2 person are ....................(what ?)

we can say : these 2 person are ................... (what ?)

and another question , what is a proper word for diffrences in age !

i mean what adjective can we use for 2 person that one of them is 23 years old $ one of them is 28 years old ?

we can say : these 2 person are ....................(what ?)