1 ten million

2 countless

3 many

4 one must by all means

1 magnificent army with thousands of men and horses (idiom); impressive display of manpower

2 all the King's horses and all the King's men

1 to grow

2 to increase

1 head of a household

2 family head

3 patriarch

4 parent or guardian of a child

1 to mature

2 to grow

3 growth

1 one man can hold the pass against ten thousand enemies (idiom)

1 proficiency in a particular field (idiom)

2 skill in a specialized area (idiom)

1 small capital, huge profit (idiom); to put in a little and get a lot out

1 You can't gain knowledge without practical experience (idiom); wisdom only comes with experience

1 to control a key point is to be master of the situation (idiom)