1 to go online

2 to put sth online

1 to count backwards (from 10 down to 0)

2 to count down

3 from the bottom (lines on a page)

4 from the back (rows of seats)

1 online

1 (numerical, statistical) index

2 (math.) exponent

3 index

4 exponential (function, growth)

1 according to

2 to act in accordance with

3 to depend on

4 to seize

5 to occupy

1 one scare after another (idiom)

2 in a constant state of tension

1 lit. their number cannot be counted (idiom); fig. countless

2 innumerable

1 Destiny is inexorable, there is no fleeing it (idiom). Your doom is at hand.

1 one strand does not make a thread, one tree does not make a forest (idiom)

1 lit. as if enumerating one's family valuables (idiom)

2 fig. to be very familiar with a matter