sub

Multiple Entries:
  sub    sub-  

Concise Oxford English Dictionary © 2008 Oxford University Press:
sub /sʌb/ informal

▶noun

• 1 a submarine.

• 2 Brit. a subscription.

• 3 a substitute, especially in a sporting team.

• 4 Brit. a subeditor.

• 5 Brit. an advance or loan against expected income.

▶verb (subs, subbing, subbed)

• 1 substitute.

• 2 Brit. lend or advance a sum to.

• 3 Brit. subedit.

Concise Oxford English Dictionary © 2008 Oxford University Press:
sub- /sʌb/ (also suc- before c; suf- before f; sug- before g; sup- before p; sur- before r; sus- before c, p, t)

▶prefix

• 1 at, to, or from a lower level or position: subalpine.

  ■ lower in rank or importance: subdeacon.

• 2 somewhat; nearly; more or less: subantarctic.

• 3 denoting subsequent or secondary action of the same kind: subdivision.

• 4 denoting support: subvention.

• 5 Chemistry in names of compounds containing a relatively small proportion of a component: suboxide.

– origin from L. sub ‘under, close to’.