Anything (such as a piece of furniture, or a software feature) that is built in, not added as an extra.
Being an essential and permanent part of something.
Being an included feature that normally comes as an extra.
Constructed as a non-detachable part of a larger structure.
A cover, often of tatting, drawn work, or other ornamental work, for the back of a chair, the arms of a sofa, etc.
A tabletop container for pens and stationery.
The wren.
Expression of agreement or positive acknowledgement, usually in reply to a question; great, fine.
To make tidy; to neaten.
Generous, considerable.
Appropriate or suitable as regards occasion, circumstances, arrangement, or order.
Arranged neatly and in order.
Not messy; neat and controlled.
Satisfactory; comfortable.