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1

regular (antonym)

irregular

1

arrive (n.+plural)

arrivals

1

expand (n.)

expansion

1

anxiety (adj.)

anxious

1
profession (adj.)

professional

2

coast (adj.)

coastal 

2

empty (n.)

employment, employer, employee

2

remind (n.)

reminder

2

recommend (n.)

recommendation

2

annoy (adj)

annoyed/annoying

3

evenly(antonym)

unevenly

3

concentrate (n.)

concentration

3

science (adj.)

scientific

3

angry (n.)

anger

3

appear (n.)

appearance 

4

economic (adj.)

economic

4

remark (adj.)

remarkable

4

important (n.)

importance

4

usual (antonym)

unusual 

4

face (adj.)

facial

5

grow (v.)

growth

5

industry (adj.)

industrial

5

puntual (adv.)

punctually

5

rely (adj.)

reliable

5

long (n.)

length