- An example of forth is all the people standing in front of a certain person in line are able to get in; from this person forth can enter.
- An example of forth is asking someone to come out of their room; to come forth.
- forward in place, time, or degree; onward: from that day forth
- out; esp., out into view, as from hiding
- Obs. abroad
Origin of forthMiddle English from OE, akin to fore
and so forth
- river in SE Scotland, flowing east into the Firth of Forth: 65 mi (105 km)
- long estuary of the Forth, flowing into the North Sea: 51 mi (82 km)
- Forward in time, place, or order; onward: from this time forth.
- Out into view: A stranger came forth from the crowd; put my ideas forth.
- Obsolete Away from a specified place; abroad.
Origin of forthMiddle English from Old English; see per1 in Indo-European roots.
- (obsolete) Forth from; out of.
- Common misspelling of fourth.
From fourth, for "fourth-generation programming language"; the u was dropped because the IBM 1130 operating system limited filenames to five characters.
forth - Computer Definition
(FOuRTH-generation language) A high-level programming language created by Charles Moore in the late 1960s as a way of providing direct control of the computer. Resembling LISP syntax, FORTH uses reverse polish notation for calculations, and it is noted for its extensibility. It is both compiler and interpreter. The source program is compiled first and then executed by its operating system/interpreter. It is used in process control applications that must quickly process data acquired from instruments and sensors. It is also used in arcade game programming as well as robotics and other AI applications. The following polyFORTH example converts Fahrenheit to Celsius: : CNV ( n) 32 - 5 9 * / . ." Celsius : user_input ." Enter Fahrenheit " CNV ;