junkie or junky/ʹjungki/ noun (pl -ies) (pl junkies)

• acetous
• acetyl
• acetylcholine
• acetylene
• acetylsalicylic acid
• ace up one's sleeve
• Achaean
• ache
• achene
• Acheulian
• achieve
• achievement
• Achilles tendon
• Achilles’ heel
• a chip off the old block
• achlorhydria
• achondroplasia
• achromat
• achromatic
• achy
• acid
• acid drop
• acid house
• acidify
• acid jazz