Adolescence /ˌæd

scope /skəʊp/ /skoʊp/ noun [ U ] RANGE
1. the range of a subject covered by a book, programme, discussion, class, etc.
I'm afraid that problem is beyond/outside the scope of my lecture.
Oil painting does not come within the scope of a course of this kind.
We would now like to broaden/widen the scope of the enquiry and look at more general matters.
scope /skəʊp/ /skoʊp/ noun [ U ] OPPORTUNITY
2. the opportunity for doing something
There is limited scope for further reductions in the workforce.
secondary /ˈsek. ə n.dri/ /-der.i/ adjective EDUCATION
1. [ before noun ] relating to the education of children approximately between the ages of 11 and 18 years old secondary education Marcus has just started at secondary school .
source /sɔːs/ /sɔːrs/ noun [ C ]
1. the place something comes from or starts at, or the cause of something
a source of heat/energy/light
a heat/energy/light source Oranges are a good source of vitamin C.
Experts are trying to track down the source of the contamination in the water supply.
We walked up the river to its source in the hills.
Money is often a source of tension and disagreements in young married couples.
2. someone or something that supplies information
The journalist refused to reveal her sources (= say who had given the information to her) .
According to Government sources (= people in the Government) many MPs are worried about this issue.
Always acknowledge your sources (= say which books you have used) at the end of an essay.
3. at source
at the place where something comes from
Tax is deducted from my income at source.