Hello Pali friends,
To interpret this key term, it's worthwhile to investigate the context where another word is used in place of 'dukkha', Bhara sutta:
http://www.accesstoinsight.org/tipitaka ... .than.html
This parallel with 'bhāra' (burdern, load) helps to understand "dukkha" as something diffucult to bear, a hardship. This is also an etymological origin of this word, where "du" refers to "difficult, hard", and "kha" to "bear, endure".
An article from Monier-Willams dictionary:
1 duHkha 1 mfn. (according to grammarians properly written %{duS-kha} and said to be from %{dus} and %{kha} [cf. %{su-kha4}] ; but more probably a Pra1kritized form for %{duH-stha} q.v.) uneasy , uncomfortable , unpleasant , difficult R. Hariv. (compar. %{-tara} MBh. R.) ; n. (ifc. f. %{A}) uneasiness , pain , sorrow , trouble , difficulty S3Br. xiv , 7 , 2 , 15 Mn. MBh. &c. (personified as the son of Naraka and Vedana1 VP.) ; (%{am}) ind. with difficulty , scarcely , hardly (also %{at} and %{ena}) MBh. R. ; impers. it is difficult to or to be (inf.with an acc. or nom. R. vii , 6 , 38 Bhag. v , 6) ; %{duHkham} - %{as} , to be sad or uneasy Ratn. iv , 19/20 ; - %{kR} , to cause or feel pain Ya1jn5. ii , 218 MBh. xii , 5298.
2 duHkha 2 Nom. P. %{-khati} , to pain SaddhP.
http://webapps.uni-koeln.de/tamil/
http://en.wikipedia.org/wiki/Dukkha
Theare are also other contexts where "bhāra"is equated with "dukkha":
Bhāra [fr. bhṛ, Vedic bhāra; cp. bhara] 1. anything to carry, a load Vin iii.278 (Bdhgh; dāru˚ a load of wood). bhāraŋ vahati to carry a load A i.84; VvA 23. -- garu˚ a heavy load, as "adj." "carrying a heavy load" J v.439 (of a woman,=pregnant). -- bhāratara (adj.<-> compar.) forming a heavier load Miln 155. -- Cp. ati˚, sam˚. -- 2. a load, cartload (as measure of quantity) VvA 12 (saṭṭhi -- sakaṭa˚ -- parimāṇa); PvA 102 (aneka˚parimāṇa). -- 3. (fig.) a difficult thing, a burden or duty, i. e. a charge, business, office, task, affair Vism. 375; J i.292; ii.399; iv.427; vi.413; DhA i.6, 111. Several bhārā or great tasks are mentioned exemplifying the meaning of "gambhīra" & "duddasa" (saccāni) at VbhA 141, viz. mahā -- samuddaŋ manthetvā ojāya nīharaṇaŋ; Sineru -- pādato vālikāya uddharaṇaŋ; pabbataŋ pīḷetvā rasassa nīharaṇaŋ. -- 4. (fig.) in metaphors for the burden of (the factors of renewed) existence (the khandhas and similar agents). Esp. in phrase panna -- bhāra "one whose load (or burden) has been laid down," one who has attained Arahantship M i.139; A iii.84; S i.233; Dh 402 (=ohita -- khandha -- bhāra DhA iv.168); Sn 626 (same expln at SnA 467), 914 (expld as patita -- bhāra, oropita˚, nikkhitta˚ Nd1 334, where 3 bhāras in this sense are distinguished, viz. khandha˚, kilesa˚, abhisankhāra˚); Th 1, 1021. So at Vism 512 with ref. to the ariya -- saccāni, viz. bhāro= dukkha -- saccaŋ, bhār' ādānaŋ=samuda -- saccaŋ, bhāranikkhepanaŋ=nirodha -- s., bhāra -- nikkhepan'upāya = magga.
http://dsal.uchicago.edu/cgi-bin/philol ... :3550.pali
Metta, Dmytro

, and despair 