TIL: RN | ScrollView column 2줄

        <ScrollView
          contentContainerStyle={{
            flexDirection: 'row',
            flexWrap: 'wrap',
          }}
        >
          {SEARCH_WORDS.map((item, index) => {
            return (
              <View key={index} style={{ width: '50%', flexDirection: 'row' }}>
                <Text>{item}</Text>
                <Text>X</Text>
              </View>
            );
          })}
        </ScrollView>

ScrollView 에

 contentContainerStyle={{
            flexDirection: 'row',
            flexWrap: 'wrap',
          }}

속성을 주고
자식 컴포넌트에 width: '50%' 을 준다..ㅎ