NA’BUDU
Synonyms and Contradistinctions

"Taba-a ":It is common to follow somebody
"Iqtada'a ":To follow somebody and act like him.
"Uswah ":To follow some model in sympathy
"Ataa'a ":To obey willingly and happily
"Istajaab ":To accept and obey an order.
"Aslama ":To submit before somebody's will.
"Qanata ":To pray with obedience and humility.
"Za-ana ":To obey without intelligence or out of one's interest.

ABDUN
Synonyms and Contradistinctions of the word Abdun (slave):

"Abdun":Slave
"Amah":Maid-slave
"Raqabah ":Slave (male or female) becoming available in any manner.
"Malik Yamiin" : Slave (male or female) becoming available as a bounty.

(Mutaraadifaatul Quran, Abdur-Rahman Kailani)