Seven-letter words - change zero to two letters to make a new word (Part 1)

readers :eyeglasses:

dreamer

creamer

(Like, in your coffee)

reamers

Tools they’re tools.

hammers

stammer

(Like The King’s Speech)

mermaid

Denmark

numeral

funeral

federal

realize

glacier

regalia

ganglia

magical

amalgam

grammar

rampage

manager