More N1 vocabulary

• 条約じょうやくtreaty; pact
• 結成けっせいformation
• 孤独こどくisolation; loneliness; solitude
• 悲鳴ひめいshriek; scream
• 補強ほきょうcompensation; reinforcement
• 同情どうじょうsympathy; compassion; sympathize; pity; feel for