| collection | : | gathering, company, group, congregation, band, party, mass |
| application | : | consolidation, converging, compression, compacting |
| close attention | : | thought, engrossment, attention, deliberation, concern, application |
| density | : | congestion, solidity, reduction, condensation, consistency, thickness |
concentration - Translation of words, word sequences and short sentences into the languages German, Spanish, French, Italian, Dutch, Portuguese, Swedish