The Collaborative International Dictionary of English v.0.48:

Heed \Heed\ (h[=e]d), v. t. [imp. & p. p. Heeded; p. pr. & vb.
   n. Heeding.] [OE. heden, AS. h[=e]dan; akin to OS.
   h[=o]dian, D. hoeden, Fries. hoda, OHG. huoten, G. h["u]ten,
   Dan. hytte. [root]13. Cf. Hood.]
   To mind; to regard with care; to take notice of; to attend
   to; to observe.
   [1913 Webster]

         With pleasure Argus the musician heeds.  --Dryden.

   Syn: To notice; regard; mind. See Attend, v. t.
        [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

34 Moby Thesaurus words for "heeding":
   accordance, acquittal, acquittance, adherence, attention,
   audibility, audition, aural examination, aural sense, auscultation,
   care, carrying out, compliance, conformance, conformity, discharge,
   eager attention, ear, examination by ear, execution, fulfillment,
   hearing, heed, hushed attention, keeping, listening, observance,
   observation, performance, practice, rapt attention, respect,
   satisfaction, sense of hearing