
1) Address 2) Address aggressively 3) Aggressively approach 4) Ambush 5) Approach 6) Approach abruptly 7) Approach aggressively 8) Approach and confront 9) Approach and speak to 10) Approach angrily 11) Approach boldly 12) Approach intrusively 13) Boldly approach 14) Buttonhole 15) Challenge 16) Come 
Found on 
https://www.crosswordclues.com/clue/accost

• (v. t.) To join side to side; to border; hence, to sail along the coast or side of. • (v. t.) To approach; to make up to. • (v. t.) To speak to first; to address; to greet. • (v. i.) To adjoin; to lie alongside. • (n.) Address; greeting.
Found on 
http://thinkexist.com/dictionary/meaning/accost/

1. To join side to side; to border; hence, to sail along the coast or side of. 'So much [of Lapland] as accosts the sea.' ... 2. To approach; to make up to. ... 3. To speak to first; to address; to greet. 'Him, Satan thus accosts.' ... Origin: F. Accoster, LL. Accostare to bring side by side; L. Ad + costa rib, side. See Coast, and cf. Accoast. ......
Found on 
http://www.encyclo.co.uk/local/20973
 Ac·cost'
Ac·cost' (#; 115) 
 transitive verb [ 
 imperfect & past participle   Accosted ; 
 present participle & verbal noun   Accosting .] [ French 
 accoster , Late Latin 
 accostare to bring side by side; Latin 
 ad + 
 costa rib, ...
Found on 
http://www.encyclo.co.uk/webster/A/15
 Ac·cost'  intransitive verb
Ac·cost'  intransitive verb  To adjoin; to lie alongside. [ Obsolete] 'The shores which to the sea 
 accost .' 
 Spenser. Found on 
http://www.encyclo.co.uk/webster/A/15
 Ac·cost'  noun
Ac·cost'  noun  Address; greeting. [ R.] 
 J. Morley. Found on 
http://www.encyclo.co.uk/webster/A/15

accost 1. To approach and stop someone in order to speak; especially, in an aggressive, insistent, or suggestive way.  2. Etymology: via French and ultimately from Latin accostare, 'to adjoin'; from costa, 'rib, side' (source of English coast). The essential sense is 'to be alongside'.  From this, or from the French derivative accoster, we have mad...
Found on 
http://www.wordinfo.info/words/index/info/view_unit/551/
 verb
 verb speak to someone
Found on 
https://www.encyclo.co.uk/local/20974

to confront boldly: The beggar accosted me for money. · to approach, esp. with a greeting, question, or remark. · (of prostitutes, procurers, etc.) to solicit for sexual purposes.
Found on 
https://www.infoplease.com/dictionary/accost
  No exact match found.