Please help
Explain the differences, if any, between each pair of words and make sentences with both words.
(a) stationary, stationery
(b) number, numeral
(c) terminal, terminus
(d) admission, admittance
(e) procedure, process
(f) entrance, entry
(g) specially, especially
(h) officer, official
(i) abroad, aboard
(j) runway, runaway