Denshi Jisho — Online Japanese dictionary

労 ろう labor; labour; toil; trouble; pains; work; effort; striving
Common word, Noun 
労使 ろうし labour and management; labor and management
Common word, Noun 
労組 ろうそ labor union; labour union
Common word, Noun, Abbreviation 
労務 ろうむ labor; labour; work; service
Common word, Noun 
労苦 ろうく labor; labour; toil; hardship
Noun, Suru verb 
労資 ろうし capital and labor; capital and labour; capitalists and laborers; capitalists and labourers
Noun 
労る いたわる 1: to pity; to sympathize with; to sympathise with; to console; to be kind to;
2: to tend to (e.g. an injury); to care for; to nurse
Common word, Godan verb with ru ending, Transitive verb 
労災 ろうさい 1: work-related injury; work-related illness; work-related death; on-the-job accident;
2: (Abbreviation) workers' compensation insurance
Common word, Noun 
労作 ろうさく toil; labor; labour; laborious task
Common word, Noun, Suru verb 
労働 ろうどう 1: manual labor; manual labour; toil; work;
2: (Abbreviation) Labour Party
Common word, Noun, Suru verb, No-adjective 
労連 ろうれん labour union; labor union
Common word, Noun 
労き いたずき 1: (Archaism) pain; trouble;
2: illness
Noun 
労き いたつき 1: (Archaism) pain; trouble;
2: illness
Noun 
労き いたづき 1: (Archaism) pain; trouble;
2: illness
Noun 
労り いたわり trouble; service; labor; labour; sympathy; illness; carefulness; attention
Noun 
労い ねぎらい appreciation; thanks; gratitude
Noun 
労う ねぎらう to thank for; for reward for
Godan verb with u ending, Transitive verb, Usually written using kana alone 
労役 ろうえき work; labor; labour; toil
Noun 
労音 ろうおん Workers' Music Council
Noun 
労咳 ろうがい pulmonary tuberculosis
Noun 
労金 ろうきん workers' credit union; labour credit association
Noun, Abbreviation 
労銀 ろうぎん wages; labor wages; labour wages
Noun 
労組 ろうくみ labor union; labour union
Noun, Abbreviation 
労功 ろうこう meritorious deed
Noun 
労政 ろうせい labor administration; labour administration
Noun 
労賃 ろうちん wages
Noun 
労動 ろうどう 1: manual labor; manual labour; toil; work;
2: (Abbreviation) Labour Party
Out-dated kanji, Noun, Suru verb, No-adjective 
労農 ろうのう workers and farmers
Noun 

Found 110 words. Page one, two, three, four

You can also

Look up kanji details for 労.

Try a Yahoo Jisho search for 労 .
Try a Goo Jisho search for 労 .
Try a Google search for 労 .