noun /ˈɹɛk.tɪ.tjuːd,ˈɹɛk.tə.tjuːd,ˈɹɛk.tə.tuːd,ˈɹɛk.tə.tjuːd/
a) Straightness; the state or quality of having a constant direction and not being crooked or bent.
We, therefore, the Representatives of the United States of America, in General Congress, Assembled, appealing to the Supreme Judge of the world for the rectitude of our intentions, do, in the name, and by authority of the good people of these Colonies, solemnly publish and declare, That these United Colonies are, and of right ought to be Free and Independent States.
b) Rightness of principle or practice; exact conformity to truth, or to the rules prescribed for moral conduct, either by divine or human laws; (moral) uprightness.
Wikipedia foundation.