Someone's nephew's wife. / Someone's sibling's daughter-in-law. / Someone's spouse's sibling's daughter-in-law. / Someone's husband's niece. (Usually called a niece.)

(chiefly UK) The principle that what can go wrong, will go wrong, usually with some observed degree of irony

An adage which states that if anything can go wrong, then it will.

(euphemistic) wiretapping

Within the letter of the law but not the spirit of the law.

The Latin language as used in law and legal documents, being a mixture of Latin with Old French and Latinized English words. / (humorous, obsolete) Barbarous Latin.

(computing) An empirical observation that the density of transistors on a chip doubles every two years.

Rule by military authorities, especially when imposed on a civilian population in time of war or other crisis, or in an occupied territory.

(law) The doctrine that no individual is above the law and that everyone must answer to it. / (law) The maxim whereby governmental decisions are made by applying known legal principles.

Pronunciation spelling of there ought to be a law.