
1) Acting teacher 2) Any benchwarmer 3) Ash can target 4) Back-bencher 5) Backup 6) Below 7) Bench occupant 8) Bench-warmer 9) Benchwarmer briefly 10) Boat with torpedoes 11) Bomber 12) Chapter opener 13) Classroom fill-in 14) Classroom replacement 15) Classroom stand-in 16) Classroom temp 17) Cousteau craft
Found on
https://www.crosswordclues.com/clue/sub

1) Alt 2) Alternate 3) Grinder 4) Hero 5) Hoagie 6) Hoagy 7) Nautilus 8) Pigboat 9) Poboy 10) Proxy 11) Sit-in 12) Stand in 13) Teacher 14) Temp 15) U-boat 16) Zep
Found on
https://www.crosswordclues.com/clue/sub

Latin, meaning: (+ acc. or dat.) under, up under, close to, beneath, below.
Found on
http://archives.nd.edu/sss.htm

Origination from subtitle, when an anime is kept in its original language, but has subtitles.
Found on
http://en.wikipedia.org/wiki/Glossary_of_anime_and_manga

• (n.) A subordinate; a subaltern.
Found on
http://thinkexist.com/dictionary/meaning/sub/

short for "subtitled." Refers to the anime in the original Japanese dialogue with subtitles in another language (usually English).
Found on
http://www.encyclo.co.uk/local/21412

Suburban stock
Found on
http://www.encyclo.co.uk/local/21542

Subroutine + Substitute + Subtract
Found on
http://www.encyclo.co.uk/visitor-contributions.php

a short, threaded piece of pipe used to adapt parts of the drilling string that cannot otherwise be screwed together because of differences in thread size or design. A sub (i.e., a substitute) may also perform a special function. Lifting subs are used with drill collars to provide a shoulder to fit the drill pipe elevators; a kelly saver sub is placed between the drill pipe and the kelly to prevent excessive thread wear of the kelly and drill pipe threads, a bent sub is used when drilling a directional hole. ...
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Sub noun A subordinate; a subaltern. [ Colloq.]
Found on
http://www.encyclo.co.uk/webster/S/218

Edinburgh Suburban line
Found on
http://www.scot-rail.co.uk/page/Glossary

(1) Short for 'sub-editor' below. (2) The process of sub-editing copy for inclusion in a newspaper, magazine or news bulletin.
Found on
http://www.thenewsmanual.net/Resources/glossary.html

SUBstitute
Found on
http://www.translationdirectory.com/glossaries/glossary262.php

A short coupling with different types and/or sizes of ends.
Found on
https://steelforge.com/literature/steelog-the-5000-word-metals-glossary/
stand in verb be a substitute; `The young teacher had to substitute for the sick colleague`; `The skim milk substitutes for cream--we are on a strict diet`
Found on
https://www.encyclo.co.uk/local/20974

(+ acc. or dat.) under, up under, close to, beneath, below.
Found on
https://www.math.ubc.ca/~cass/frivs/latin/latin-dict-full.html
No exact match found.