booked

As a verb booked

is (book).

As an adjective undefined is

lacking a definition or value.

As verbs the difference between blocked and booked

is that blocked is past tense and past participle of to block while booked is (book).

As an adjective blocked

is obstructed impeding general movement.

As verbs the difference between booked and posted

is that booked is (book) while posted is (post).

As verbs the difference between booked and billed

is that booked is (book) while billed is (bill).

As an adjective billed is

having a specified kind of bill (beak or beak-like projection).

As verbs the difference between booked and asked

is that booked is (book) while asked is (ask).

As a verb booked

is (book).

As an adjective reserve is

reserved.

As a verb booked

is (book).

As a noun appointment is

the act of appointing; designation of a person to hold an office or discharge a trust.

As a verb booked

is (book).

As a noun reservation is

reservation.

As verbs the difference between booked and registered

is that booked is past tense of book while registered is past tense of register.

As an adjective registered is

having had one's name added to an official list or entered into a register.

As verbs the difference between booked and ordered

is that booked is past tense of book while ordered is past tense of order.

As an adjective ordered is

in order, not messy, tidy.