a research student (i.e. a visiting or non-matriculating graduate student) / a researcher

research association; research society / group of enthusiasts (as may be found in schools, colleges, etc)

researcher

researcher

to obtain, to come into possession, to become available

to be proficient, skilled, experienced

ashamed and unable to show one's face

"to enter the head": for learning to stay in one's head

to be among the top 5

(transitive, idiomatic) to develop a crack, to break / (intransitive, idiomatic) to get cracked