Supplementary benefit and Social insurance

Supplementary benefit noun - Benefits paid to bring incomes up to minimum levels established by law.

Social insurance and supplementary benefit are semantically related. In some cases you can use "Social insurance" instead a noun phrase "Supplementary benefit".

Social insurance noun - Government provision for unemployed, injured, or aged people; financed by contributions from employers and employees as well as by government revenue.

Supplementary benefit and social insurance are semantically related. Sometimes you can replace phrase "Supplementary benefit" with "Social insurance", this phrases are similar.