Regardless of the variable ways to define Lord it must be agreed that Lord implies highest rank.   
Definition of Lord: one possessing authority, power, and control

We know that in the British Empire that there are lords and ladies.   So, the term lord may in fact merely represent a status that is not the highest possible.   

However, we see that Jesus is Lord Of Lords and King Of Kings.   

These shall make war with the Lamb, and the Lamb shall overcome them: for he is Lord of lords, and King of kings: and they that are with him are called, and chosen, and faithful. - Rev 17:14 The beast and his supporting world leaders will come against Christ but He will destroy them.

And he has on his vesture and on his thigh a name written, KING OF KINGS, AND Lord OF LORDS. - Rev 19:16 yes He is!

There may be those who will argue that there is a higher authority than the Lord Of Lords.   Let's call Him 'God'.   

The question that such a supposition raises is: "What does that authority look like?"

And Jesus came and spoke unto them, saying, All power is given unto me in heaven and in earth. - Mat 28:18 Jesus received power and authority over heaven and earth upon His resurrection.      1) He reclaimed His seat with the Father from where He had come.      2) He regained dominion over the earth for man, stripping it from Satan.

Obviously this 'God' has no power as all of it is invested in Christ Jesus.   

But the very notion that there is 'God' with no power makes no sense.   'God', by definition must be sovereign and hold ultimate power.   

So, for those who hold on to the Trinitarian concept of three in one, the question arises:
"Who is this 'God' who has no power but is somehow greater than the One who holds all power?"

I will leave the trinitarians reading this article to ponder that question while I move on to the simple, logical conclusion below.   

Jesus is the express image of the Holy Spirit who is the omniscient, omnipresent, omnipotent Creator 'God'.   Jesus is Spirit Soul And Body just as we are who were created in His image.   

Jesus is Lord in every sense of the Word and He defers to no other being than Himself who is defined by His Holy Spirit.   

Worship Jesus.   He is the Truth and His Spirit is the Holy Spirit whom He has shared with us.   

But the hour comes, and now is, when the true worshippers shall worship the Holy Spirit in spirit and in truth: for the Holy Spirit seeks such to worship him. - Joh 4:23 To fellowship with the Lord, to be One with the Lord, requires us to be Spirit Filled Eph 5:18 and to be Word transformed Rom 12:2.      The Holy Spirit is the Spirit of our Lord Jesus Joh 4:24 1Co 2:12.      The Word is the Lord ( Christ Jesus).      So, for us to please the Lord in our worship of Him, we fellowship with Him in His Holy Spirit in meditation upon His Word.

The Lord is a Spirit: and they that worship him must worship him in spirit and in truth. - Joh 4:24 The Lord is the Holy Spirit.     The Holy Spirit is the Lord.      Any Worship that does not acknowledge the Holy Spirit does not acknowledge the Lord.     Such worship is futile.      The Word Of The Lord is Truth.     Joh 17:17 Any Worship that does not honour the Truth does not acknowledge the Lord.     Such worship is futile.