Abbreviation of factor IX. (clotting factor IX)

A surname.

(dated) To prepare to or intend to; to have the intent to do something.

in a pickle, in a mess, in the soup

(fandom slang, often attributive) A fanfic which undoes or changes an element of canon viewed as unfavourable, e.g. a death, break-up, or betrayal.

plural of FIX

(art) A series of presentations and/or performances, discussions or similar events that happen on a fixed day every month (or similar; for example "every second Sunday of a month"). Used mainly by cultural and artistic organizations.

(Christianity) an annual celebration that is held on the same calendar date every year, such as Christmas (December 25)

(computing) A fractional-number representation with a fixed number of digits after the decimal point. Compare floating point and integer.

(computing) Pertaining to fixed point representations or operations.