Constructed as a non-detachable part of a larger structure. / Being an essential and permanent part of something. / Being an included feature that normally comes as an extra.

Anything (such as a piece of furniture, or a software feature) that is built in, not added as an extra.

A blessing or expression of hope that a deceased person is at peace. / (euphemistic) To have passed away, or died.

In a sequence. / Ready, prepared; orderly; tidy. / (idiomatic, formal) In accordance with the procedural rules governing formal meetings of a deliberative body. / (idiomatic) Appropriate, worthwhile.

In good condition, repair; in a good state. / (idiomatic) In a good state of physical fitness or bodily appearance.

(idiomatic, slang) To engage in anal sex.

(accounting, idiomatic) Having positive net income; having greater income than expenses; making a profit. / (accounting, idiomatic) Having positive net worth.

Children’s toy consisting of a small box from which a male figure pops out unexpectedly after some turnings of a crank.

(informal) In a situation of being the object of someone's anger or disapproval, especially one's spouse.

(US, idiomatic, informal) Synonym of ace up one's sleeve