As verbs the difference between conveyance and preboard

is that conveyance is (legal|transitive) to transfer (the title) of an object from one person or group of persons to another while preboard is to allow someone to step or climb onto or otherwise enter a ship, aircraft, train or other conveyance before other people are allowed to board.

As a noun conveyance

is an act or instance of conveying.

In transitive terms the difference between board and preboard

is that board is to receive meals and lodging in exchange for money while preboard is to allow someone to step or climb onto or otherwise enter a ship, aircraft, train or other conveyance before other people are allowed to board.

As a noun board

is a relatively long, wide and thin piece of any material, usually wood or similar, often for use in construction or furniture-making.

As a proper noun craft

is .

As a noun broking is

the craft or profession of a broker; mediation in a sale or transaction.

As nouns the difference between profession and broking

is that profession is a promise or vow made on entering a religious order while broking is the craft or profession of a broker; mediation in a sale or transaction.

In computing terms the difference between broker and broking

is that broker is an agent involved in the exchange of messages or transactions while broking is the action of a broker agent; exchange of messages or transactions involving a software agent.

As nouns the difference between broker and broking

is that broker is a mediator between a buyer and seller while broking is the craft or profession of a broker; mediation in a sale or transaction.

As an adjective broker

is comparative of broke.

As a verb broker

is to act as a broker; to mediate in a sale or transaction.

As nouns the difference between mediation and broking

is that mediation is mediation while broking is the craft or profession of a broker; mediation in a sale or transaction.

As nouns the difference between sale and broking

is that sale is splinter while broking is the craft or profession of a broker; mediation in a sale or transaction.

In computing terms the difference between transaction and broking

is that transaction is an atomic operation; a message, data modification, or other procedure that is guaranteed to perform completely or not at all (e.g. a database transaction) while broking is the action of a broker agent; exchange of messages or transactions involving a software agent.

As nouns the difference between transaction and broking

is that transaction is the act of conducting or carrying out (business, negotiations, plans) while broking is the craft or profession of a broker; mediation in a sale or transaction.

As adjectives the difference between plain and unshowy

is that plain is flat, level while unshowy is not showy; plain or unassuming.

As an adverb plain

is simply.

As a noun plain

is a lamentation.

As a verb plain

is to lament, bewail.

As adjectives the difference between unassuming and unshowy

is that unassuming is modest and having no pretensions or ostentation while unshowy is not showy; plain or unassuming.