post-paid 
adjective & adverb
(With reference to a letter or parcel) on which postage has already been paid: [as adjective]: use the post-paid envelope provided...
- They recently sent me a letter, with a post-paid envelope and a request to re-subscribe or at least write back and explain why I'd given up on them.
- Stacks of questionnaires are on hand for us to fill in and send to the Guildhall by March 14 in the post-paid envelopes that are also supplied.
- The DVD is beautifully packaged in a bag that doubles as a post-paid return envelope - the whole concept is well thought out.
- as far as
- as far as I can see
- as far as one can tell
- (as) fit as a fiddle
- (as) fit as a flea
- (as) flat as a pancake
- as for
- as from
- as from (or of)
- (as) full as a goog
- (as) full as a Pommy complaint box
- (as) game as a pissant
- as game as Ned Kelly
- Asgard
- as God is my witness (or God be my witness)
- (as) good as gold
- (as) good as new
- as good as ——
- ash
- a shade ——
- ashamed
- ashamedly
- Ashanti
- A-shaped
- (as) happy as a sandboy (or Larry or a clam or vulgar slang a pig in shit)