Webster's English Dictionary

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can

1. can \k*n, (')kan sometimes k*n\ \k*d, (')ku.d\ vb or could;  or can [ME 
   (1st & 3d sing. pres. indic.), fr. OE; akin to OHG kan (1st & 3d sing] past 
    pres sing & pl . pres. indic.) know, am able, OE cna-wan to know - more at 
   KNOW obs  1: KNOW, UNDERSTAND  2: to be able to do, make, or accomplish  
   archaic  : to have knowledge or skill  1a: know how to {he ~ read}  1b: be 
   physically or mentally able to {he ~ lift 200 pounds}  1c: may perhaps {do 
   you think he ~ still be living}  1d: be permitted by conscience or feeling 
   to {~ hardly blame him> 1e: be inherently able or designed to {everything 
   that money ~ buy } 1f: be logically or axiologically able to {2 + 2 ~ also 
   be written  3 + 1} 1g: be enabled by law, agreement, or custom to  2: have 
   permission to - used interchangeable with may {you ~)R go now if you like}
2. can \'kan\ n [ME canne, fr. OE; akin to OHG channa] 1: a usu. 
   cylindrical receptacle :  1a: a vessel for holding liquids; specif : a 
   drinking vessel  1b: a cylindrical metal receptacle usu. with an open top, 
   often with a remo vable cover, and sometimes with a spout or side handles 
   (as for holding milk, oil, coffee, tobacco, ashes, or garbage) 1c: a 
   tinplate container in which perishable foods or other products are he 
   rmetically sealed for preservation until use - called also tin 1d: a jar 
   for packing or preserving fruit or vegetables  slang  2: JAIL  3: DEPTH 
   CHARGE  4: DESTROYER 
3. can \'kan\ vt or canned;  or can.ning 1a: to put in a can : preserve by 
   sealing in airtight cans or jars  1b: to hit (a golf ball) into the cup  
   slang  2: to expel from school : discharge from employment  slang  3: to 
   put a stop or end to  4: to record on discs or tape {canned music}  - 
   can.ner n