أسم
observer [pl. observers]
overseer [pl. overseers]
superintendent [pl. superintendents]
perceiver [pl. perceivers]
warden [pl. wardens]
صفة
noticeable [ more noticeable ; most noticeable]
observant [ more observant ; most observant ]
clear [ clearer ; clearest]
obvious [ more obvious ; most obvious]
visible [ more visible ; most visible]